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Building new Shark tank 3/20/16 Banded cat shark/coral shark ; stkg. in a 120 reef... 7/11/14Hello, I have been reading a lot on your website about sharks. I will soon have a 120 gallon system with a large sump too. I live 4 miles from a local aquarium that has a shark/ray tank and a seal hospital as it is literally metres from the sea, this means they have marine biologists on hand every day and they accept livestock donations subject to health. I would love to have the experience of hatching a mermaids purse in my lifetime and hope this could be a possibility with my tank. I currently have: 1x bicolour blenny 1x green mandarin dragonet 1x foxface lo 1x ocellaris clownfish 1x green Chromis Several inverts lots of LPS coral <... Mmm, a 120 gallon... with all this other life in it... the corals will be knocked over, covered with gravel... most all the fishes will be eaten in time...> I would be moving these into the new tank. Basically I'm asking, could I hatch the mermaids purse and keep the coral/bamboo shark for a few months until around 12-15" then donate it to the aquarium. <Not a good gamble; sorry> I would like to do this whilst retaining my current livestock. Any insight on this would be great as I can't find many stocking limits/options with this selection of fish. Other things need to be considered e.g. total inches of fish including the shark fitting into my limit. I understand the possibility of the shark eating the smaller fish but I've read in reviews that their sharks are generally placid when they have been hatched amongst other fish. Thanks, Matt <Perhaps you could approach the folks at the local aquarium regarding volunteering... Bob Fenner> Shark Tank 9/28/12
Most suitable shark for a 135G?
11/15/11 epaulette shark, stkg./sel.
11/13/11 Thinking about a shark 11/3/11 Fabulous set-down for pretentious,
homicidal idiots who want to own sharks (By Bob Fenner)
6/1/2011 Best Shark for 8'x2.5'x2.5'
Setup? 12/31/10 Finding the Speckled epaulette and Northern
Wobbegong 12/12/10 Turtle question. SW avail.... Oh, and shark
sel. f' as well 2/28/10 Estimate of shark ownership in US 12/3/08 Hi,? I am writing an article for a veterinary journal regarding the medical care of small sharks in the home aquaria.?? I am able to get figures from the AVMA regarding the numbers of fish owners, but I was wondering if you have an idea as to the percentage of fish owners who also own sharks? Thank you, Sharmie Johnson, DVM <Mmm, there are no hard/fast data re... but can give a qualitative guess based on figures for how many Selachians of small species are imported through the major wholesalers in the U.S.... and some sort of further guess-timate re how many of these animals are alive after a given period of time. My best guess is the numbers are in the low thousands... including small individuals of larger species (e.g. the Blacktip, Carcharhinus melanopterus, the Nurse, Ginglymostoma cirrhatum) and coldwater species... the most popular being Heterodontus francisci... collected along the two Californias mostly. The remaining species that are more appropriate for home aquarist keeping are principally Epaulette and Bamboo shark species, with a smaller percentage of some Catsharks... After chatting with Elasmobranch studying friends, and authors of popular shark writing, I have mild confidence that most individuals kept last something less than three months of capture/purchase... The percentage of marine aquarium keepers of sharks I'd put at 0.1 percent... about one out of a thousand. Bob Fenner> Re: estimate of shark ownership in US 12/16/08 Hi Bob, <Sharmie> Thank you for getting back to me regarding the estimated number of sharks in private hands.? Would it be okay if I quote you in my article as a "pers comm?" Thanks, Sharmie <Yes. Bob Fenner, who last attended a AVMA, IAAAM get tog. back in 83 along with the Baltimore Aquarium opening> Triakis scyllium, shark sel. 11/20/2008 Hello Crew! I saw a very small pair of Triakis scyllium at a LFS. I couldn't find any info on them. I was wondering what you knew? <Have seen this species intermittently offered in the trade...> I am guessing they are pretty much like a smoothhound shark. I would like to get them but want to research first. My current tank is a 220 that is 6 foot long, 30 inches wide and 24 tall. <Mmm, too small> I run a Deltec Ap851 skimmer, 300 gallon wet/dry, <Inappropriate for shark systems> 3/4 HP chiller (keeps my temp at 70), 36 watt Coralife UV and a barracuda pump as a return. Water param.s are PH-8.4, Nitrite-0, Nitrate-40, Ammonia-0, Sal 1.023. Tank has a 5" Lunare wrasse, 5" Naso tang, 5" Yellow tang, 6 "Hippo tang, smaller hermits and a conch. <All food> 40 LBS of LR stacked onto left side of tank to optimize swimming room (rock wall like and stable). Overflow is on the outside as well and tank has 150-200 LBS of very fine almost oolite sand. I have kept sharks before and have a lot of experience with them I just cleared my tank out and am waiting for a Port Jackson. However I want info on the Triakis scyllium. I know they will outgrow this tank and I am in the process of paying for a larger tank since I plan on keeping all my fish for their full life terms. Please let me know what you know. Thanks, Andre <This fish/species grows to about this systems length, is subtropical... I would not try them here. Bob Fenner> Shark Compatibility 011/04/08 Would an epaulette shark be compatible with a couple of California Horn Sharks? I have never read about any incompatibilities, but thought I'd check with you guys. I have a 480gal tank, dimensions are 8' long, 2' deep, and 4' front-to-back. I use oolitic sand, because it's the smallest grain available and I know shark bellies are sensitive. The water is chilled to 72 degrees with a 1 hp chiller (necessary because I live in West Texas). <Yes, the California Horn Shark Heterodontus francisci is a subtropical to temperate species. Slightly lower temperatures 65-70 F (18-21°C) would even be better in the long run, especially when the animals grow. Also see http://www.wetwebmedia.com/heterodontusfaqs.htm and the linked articles.> I have a minimum of rock work, and what I do have is somewhat centered in the middle of the tank, so that the sharks can make a full circle even on the bottom. My male Horn is 25" long and I've had him over a year now. The female is about 15" and I've had her about 5 months. I've been very careful in choosing my tankmates so far...mostly tangs, eels, and some bar gobies. <Hopefully no tropical tankmates.> No angels, triggers, puffers as I know they have a tendency to nip at sharks. Would a 7"-10" epaulette be OK or do you think I should pass on it? <The problem here is that one species (California Horn Sharks) comes from subtropical waters while the other one (Epaulette shark Hemiscyllium ocellatum) comes from the tropical waters (74-80 F, 23-27°C) of Northern Australia and New Guinea. Therefore, they need different temperatures and should not be kept in the same system. Too low or too high temperatures will likely result in a declining immune system and shortened life span. Enforcing a compromise with intermediate temperatures will make none of them happy or keep them healthy long term.> Thanks in advance. Robert. <Welcome. Marco.> Another nail in the coffin???? Ginglymostoma, shark sel. 10/20/08 Ladies and gentlemen, Please take a look.... http://www.thespec.com/News/Local/article/448350 Sincere regards, Frank A. <Sad and sickening. Bob Fenner> Shark Species Advice - 8-13-08 Hello- <Lovely morning? Mike here today> I maintain a 5600 gallon saltwater aquarium that is cylindrical in shape (9' in diameter and 6' in height) with an artificial reef in the center. <Nice - I want one!> The salinity is 30ppt and the temperature is a constant 75°F. In addition, I have UV sterilizers, a protein fractionator, fluid sand filters, sump with heater, a chiller, and a huge generator. The system has been circulating for 1 year and currently houses 2 gray triggerfish, 2 mangrove snapper, 2 jack crevalle, 1 Atlantic spade fish, and 3 grunts; all of which are 12+ inches except the grunts which are 6 inches. I wish to add a shark (preferably, one native to the waters of the Gulf of Mexico) and respectfully request your suggestion. Although my degree is in marine biology and I have an experienced aquarist on hand, my concern lies with the shark and maintaining a healthy environment for it. I look forward to your reply. <Well, unlike most who wish to house a shark in the home aquarium, you're well equipped to do so - that is a very nice potential shark setup. Due to the volume and size, there are a handful species available for you to (potentially) house successfully. Are you looking for a benthic shark or a more active shark? See here for an overview of possibilities: http://www.wetwebmedia.com/sharks.htm. With the temperature of your aquarium, you're going to need a tropical shark, and even with a large aquarium like you have, you're probably still better off with a benthic shark. Have a look at the bamboo sharks, the epaulette sharks, and swell sharks and see if anything catches your eye. A perusal of our database will tell you all you need to know regarding husbandry> Thank you, <Anytime> Lisa <M. Maddox> Peppered Catshark, sel. 7/26/08 I was wondering if you knew any thing about the peppered Catshark "Galeus piperatus". I know there only suppose to get about a foot which would make it ideal for the home aquarists. However I can't find anyone that sells them. <Mmm, have never seen this fish in the trade... according to FishBase: http://fishbase.org/Summary/speciesSummary.php?ID=810&genusname=Galeus&speciesname=piperatus it's found in the upper Sea of Cortez... one can collect from this area now-a-years, but... don't know anyone who does. Bob Fenner>
New question about an old issue, shark hlth., sys. 4/26/08 Crew, <Tom> Perhaps you remember (and perhaps you don't) me writing a ton about a pet Banded Cat Shark that I owned, my display tank having ick with the shark, and my treating the tank with Quinine Sulfate in an attempt to eradicate the ick with the shark present. And you might remember how the Quinine was very effective in ridding the tank of the ick, but that the shark began a steady decline over the course of a month and a half and finally passing away after being unable to eat (this after feeding wonderfully on shark formula and vitamins for 6 months, and doing quite well.) <I do recall> Months have passed, and though I have added a few additions to the tank, we have been nearly 4 months with absolutely no issues. But, my mind still wanders back to that time and while I have no intentions or desire to have another shark, I still think about what caused his demise. I don't really run carbon continuously in my tank. It's 200 gallons with probably 150lb of live rock, filtered by a Fluval FX5 (which I clean and rinse sponges every two weeks) used mainly for water flow and biological filtration, a wet/dry trickle filter, and a large hang on protein skimmer which is actually rated for 180 gallons. I do a 25% water change every two weeks. But I do have a small canister filter that I put carbon in and run on occasion. Obviously during the treatment with the Quinine, I did not run the skimmer or the carbon. but after the treatment duration I did appropriate water changes, turned on the skimmer and put carbon back on the tank. Now, I wonder, how long is fresh carbon actually viable? <Mostly gets "used up" within minutes, hours... rapidly drops off past then> Some information outlets say change it every couple of weeks. but some say the most effective use of new carbon is in the first couple of days. being that this canister filter isn't large to begin with, do you think that it was not effective at removing all of this quinine, and the lingering presence of this medicine caused the shark's demise? <I do not> Water parameters were the same then as now, salinity was 1.025, PH was 8.2, 0ppm of both ammonia and nitrites, nitrates less than 10 - 20 ppm at all times. Again, no problems to resolve now, but something that bugs me and as I think about it often, I might have new questions about it. The tank now houses a 5" Passer angel, a 6" Lunare wrasse, a 5" yellow tang, a Maroon Clown, and a Snowflake Moray. All have been problem free nearly all of 2008. Thanks so much. Thomas Roach <Sharks are not, by and large, little aquarium fish... and most tanks to them... are little. BobF>
Grey Bamboo Shark Egg, source 12/24/07 Hello, <Hi there> I've been reading through your FAQ's about sharks and have decided on a Grey Bamboo Shark. Was wondering if you knew of a good online source for eggs??? Thanks, Tom <The usual good companies... Dr.s Foster and Smith, the Marine Center... Bob Fenner> Shark pond... sys., and stock sel., reading -- 10/30/2007 Hello, <Hi there> Long time reader, 1st time I've written. Thanks in advance for your time / advice. <Welcome> I've argued, reasoned and walked away from people who wanted me to help them setup a 200 gallon shark tank, but for the first time have a customer that presents a possibility that just might work. I have a great deal of reef and FOWLR experience but I've never owned, sold, or cared for a shark. The pond was to have been for Koi, now he is thinking saltwater and sharks / rays. The system will be just under 1600 gallons, 24 ft long, 3.5 ft wide and 2.5 ft deep. It is best described as a cement "tray" which will be tiled on the sides and have a substrate of our choosing on the bottom. This "pond" will be indoors, we could include a very large chiller, but I would rather stick with animals that will do well in the area of 75 degrees. <There are many> Filtration will be a skimmer, something big, though we will have some kind of height limit. Something like this: http://www.championlighting.com/product.php?productid=21017 <http://www.championlighting.com/product.php?productid=21017&cat=646&pag e=1> &cat=646&page=1 or bigger / better if possible. <Okay... though I would write RK2, EuroReef... look into something "larger" in terms of function here> Everything I read simply suggests a "large" tank and at least 3 * the animals length. I would like to keep everyone as small as possible. Under 30, maybe 36 inches have a bit of variety in the animals and stick with hardy, easy inhabitants. I am worried about the width of the pond and larger fish being able to make the turn. What combo of sharks, rays, eels and anything else would you suggest? <Epaulettes, Bamboos... all posted... Here: http://wetwebmedia.com/marine/fishes/index.htm The second tray... FAQs files on Shark Sel., Ray Sel.... Bob Fenner> Thanks again! Phil Wind Reef eScape Brown Banded Bamboo Shark Adoption 7/17/07 Dear WWM Crew, <Hello> I have had a brown banded bamboo shark for about 2 years now (hatched him myself). He is at, about 15 inches and is in a 125 gallon tank. A couple weeks ago he stopped eating but I emailed you guys and after changing his diet and lowering the nitrates, I got him to eat again. <Good> I have an empty 75 gallon tank that I'm going to turn into a reef tank but I cannot afford to have two tanks running at the same time so I was going to sell my 125 and bring most of my fish back where I bought them, but I would not like to do that with my shark unless I have no other options. <If they will take it most likely your only option.> I think I read somewhere on your web sight that you are a public aquarium and I was wondering if I could donate my shark to it. <Unfortunately not, Bob is working on something in Hawaii, but it is just in its preliminary stages.> I live in Florida but could find a way to get it to San Francisco (correct me if that's not the right place). Please email me back when you get the chance. Thank You, Brendan Crosby <Your best bet here is either the LFS or posting on the major aquarium forums and see if an individual is interested.> <Chris> Coral Catshark and Soapfish 6/24/07 Hi again Crew! <Katie> I have been hearing some mixed information when it comes to this topic. Recently I purchased a sixline Soapfish, a fish I have loved for a long time. I was aware that they produced a toxin in their mucus coating but I was under the impression that it was a defense mechanism, so of like with cowfish. How risky is it to keep these guys with other tankmates? <Mmm, not much... in a "large-enough", well-maintained system, minimal> Is it fairly rare to have them kill a tank full? <Yes... would have to be small, die, dissolve unseen...> He is currently in a 55 gallon but will make a move to a 150 gallon within the next month or so. <Good> Also, I plan on keeping a coral Catshark in the 150 gallon (until it outgrows it). I have heard that coral Catsharks mainly eat crustaceans and will not bother most fish, but I have also been reading lately that its not uncommon for them to attack tankmates while feeding....? <Mmm, yes, at feeding times at times... or most anything... bite rocks, what have you in a sort of "frenzy"> Does this mean its probably not wise to keep a coral Catshark and a sixline Soapfish in the same tank, because of the toxins in the soapfish's skin? Thanks in advance for the help! -Katie <Not likely... most Grammistids are rather shy, secretive... and seem to be aware of such predation. I give you good odds of not having problems here... and if the G. sexlineatus should be consumed in this 150, I doubt if this would created a toxic situation. Bob Fenner> Public Aquarium Fish, Collecting, moving sharks, rays 5/30/07 I am currently building a public aquarium in Chiang Mai, <Oh! Was just (back) there a few months ago... Has this town grown!> Thailand with a main salt water tank of 4,000 cubic meters. Do you know of any reliable, humane and responsible suppliers of sharks and rays which it is intended to display here. <Mmm, quite a few... I would contact the Director and Curator at the new Bangkok Aquarium for their help here> The aquarium is part of Chiang Mai zoo and I am afraid that it may end up in a call going out to local fishermen to supply part of their catch. <Mmm... it is NOT easy to transport cartilaginous fishes caught this way generally... I would also contact the folks at Monterey Bay Aquarium for help here re techniques, gear...> Although they can catch them they cannot transport them nor be guaranteed to behave in a responsible manner. <Bingo... YOU need to have a boat near, or catch these fishes yourself... WITH the tank, pumps for recirculating water through the fishes mouths... likely anesthetic (MS-222...)... and a ready-to-go live-hauling truck to move all to your town... stat!> Unfortunately, I know a lot about acrylic, life support systems and theming but not much about fish (at least commercially). <Delegate my friend... Hire, find some folks with experience, or travel, send someone to visit other institutions re these areas of expertise. Bob Fenner> Overseas Purchasing of Marine Sharks 4/3/07 Hello all and thank you in advance. I have a 18,000 gallon shark pool and am considering purchasing some black tip reef sharks from an overseas supplier. I am writing to inquire if this would be wise for an individual to do. Is there any type of directory or method to verify the legitimacy of wholesale suppliers out side of the US? <Unfortunately no... there is not such a list of "legitimate players"... and/or not... And indeed there are outright crooks in our trade... Internationally, including within the U.S.... FWIW (which is a great deal here), I STRONGLY encourage you to deal with/through a U.S. based wholesaler... Likely Quality Marine or Sea Dwelling Creatures, Underwater World on the west coast... Or All Seas in L.A. or Miami... Perhaps best done with the cooperation of a LFS you're friendly with... for a nominal pass-through fee... Your "net landed cost" for these Carcharhinids will very likely be less... perhaps very much so... due to the economies of scale of shipping, CITEs, Customs, moving boxes about... There is much we might discuss here... but suffice it for here/now, that I encourage you to ask you local fish store re this possibility, and have them in turn contact one of the "A" players listed above. All will have to be arranged to have you notified re their ETA, close pick-up, processing locally. Bob Fenner> Matt Ongoing Shark Ignorance, Apathy... and the cheese which is so much of the BBs... with an apology to cheese - 03/02/07 Please check out this link and tell me what you think? I for ne am truly >disgusted and when i called was treated like a total dumb a$$ and was even >made fun of for being concerned! Spread the word and help us help these > poor >sharks! ><Received no link on this end, what are you referring to? Adam J.> SORRY MUST HAVE FORGOT TO PASTE IT! <That's okay but don't shout.> HERE IT GOES THOUGH: <Got it.> http://reefcentral.com/forums/showthread.php?s=&threadid=1015485&perpage=25&pagenumber=1 LET ME KNOW YOUR THOUGHTS <Tis unfortunate, though not uncommon, fight this ignorance with knowledge my friend. Adam J.> I Want A Dwarf Lantern Shark (Don't Get Your Hopes Up) - 02/15/07 Hi Bob, <<Hello Eddie...Eric here>> My name is Edward Andrews and I'm interested in getting a dwarf shark for my living room. I did some research on them and saw that they're only about the size of my hand. <<Hmm, I can only imagine you are referring to the Dwarf Lantern Shark (Etmopterus perryi)...or possibly the Spined Pygmy Shark (Squaliolus laticaudus>> I live in central Florida so it may be easier to find one living down here. <<From what I can determine about these sharks, I don't think it likely you will be able to obtain one "wherever" you are located>> What would I need to do to make sure it lives the happiest of lives? <<Ah yes, the sixty-four-thousand-dollar question...(sigh)>> I realize that they're the smallest sharks and that's what I want. I don't need a nurse shark or any of the bigger species. <<Indeed>> I just want a good fish. Please send me any info u have in making this happen. Thanks. Eddie <<Honestly Eddie, I don't think pursuing this shark for aquarium keeping is a practical exercise. These sharks are bottom dwellers found only in very deep waters (more than 600 feet)...couple this with their small size and low fecundity it's likely they don't often show up as by-catch by the commercial fisheries, and almost certainly never as "aquarium" specimens...and as such, any information on husbandry will be non-existent. Regards, EricR>> Re: I Want A Dwarf Lantern Shark (Don't Get Your Hopes Up) - 02/15/07 Hey thank you so much for your help. <<Quite welcome>> I'm kind of new to this, however I want to get a shark for a pet. <<Mmm, not the best choice to cut your saltwater-fish-keeping teeth upon>> One that won't get to big, however I do have a lot of space. <<"a lot" is a very subjective value 'hopefully, several hundred gallons>> I also heard nurse sharks would be good pets. <<You heard wrong my friend...get much too large for home aquaria. Might I suggest before you "jump in" that you spend some time reading and researching shark systems/aquarium species/husbandry/et al...you and your future pets both will be much happier for it. If sharks are to be your thing, get a copy of the book 'Aquarium Sharks and Rays' by Scott Michael. And in the meantime there is much info re on our site...do start reading here, and be sure to follow/read among the associated links in blue at the tops of the pages: http://www.wetwebmedia.com/sharks.htm Regards, Eric Russell>> CA leopard sharks 1/5/07 Mr. Fenner, I'm not sure how often you are asked about Leopard sharks, <Too often my friend... almost never are these animals kept in appropriate circumstances by hobbyists> or the areas your readers frequent, but someone had forwarded me a link to your page, and I saw a few articles about leopard sharks. I'd be happy to answer any questions regarding the legality of different things kept as pets in California. <Would you mind us... am inferring this here... positing your email address?> Specifically, fish that are native to California, although I could attempt to help if there was a question about exotics, as we do restrict some species. <Thank you> I do not want my email address made public/posted, however you may contact me if you have any questions. <.... what? By smoke signals?> Leopard sharks must be 36 inches in total length to possess in California, regardless of their source. <Wow, I was unaware of this... is this a new advent? The trade sells these at much smaller sizes... perhaps they're originating outside the State>> The only exception is if someone can show that they have had it as a pet since 1994, and received written permission from the Department to keep it. Thank you, LT Hartman <Again, thank you for this input. If there is a further referent, some place to send folks to re... Please send this address, URL along. Bob Fenner> Re: CA leopard sharks 1/5/07 Mr. Fenner, If persons have questions or want more information they can go to the Department's website at www.dfg.ca.gov Most of the information they would be seeking would be under the Marine Resources area. <Thank you for this> They can also email the Department at askmarine@dfg.ca.gov Feel free to make that email address available to your readers. <Will do so> As for the regulations on leopard sharks, the size limit was established in 1994/95. The illegal trade of undersize leopard sharks is a Black market of sorts, <Ahhh! As you will realize, I am not a fan of keeping Triakis, most any other Selachians in home-size systems... They don't live in such very long or well> and resulted in numerous arrests last year by the Department of Fish and Game and NOAA. There is no exception to the size limit, even if the sharks are brought in from Mexico of Portland. <Really? Good to know> Possession of a leopard shark under 36 inches in California is a Misdemeanor, punishable by a fine of $1,000 and or 6 months in jail. The section is Fish and Game Code 8388.5, available on our website. Hopefully this will help keep some of them out of those little tanks. Thanks, and feel free to contact me our askmarine@dfg.ca.gov if you have any questions, LT Hartman <Again, thank you for your efforts. Bob Fenner> Shark sel. Question 11/21/06 Bob, I am going to be having a custom 325 gallon aquarium built. It is going to be a flat back hexagon shape with the dimensions 84"x24"x10"x64" at a 30" height. Besides the Brown Banded Bamboo shark are there any other species that tend to be more active <Mmmm> I could house in this size tank ? Thanks, Brenden Hewko <Yep. Please read here: http://wetwebmedia.com/sharkselfaqs.htm and the linked files above. Bob Fenner> Shark Question/s... sel., health, fdg., sys. 11/14/06 Hey Bob, I am located in Toronto, Canada and was browsing your website and was fascinated by all the useful information I found. For the past 1 and a half months I have been doing a lot of research on the Brown Banded Bamboo sharks. I have read and gone threw <through> multiple websites, joined multiple forums, and bought many books including Scott Michaels " Aquarium Sharks and Rays" which was very informative. I will be purchasing a 250-300 gallon aquarium soon which will be the home for 2 Brown Banded Bamboo sharks. It will be a flat back hexagon shape with the dimensions 84x24x10x64 with a 30" height. Do these dimensions sound good for Brown Banded Bamboo sharks? <For a short while, for small specimens> For feeding would you recommend live food? <No... fresh/or defrosted meaty foods> Or frozen food. Most people I have talked to recommended frozen would, on a feeding stick to ensure I give both an equal share. But some say its easier to get them acclimated with live food? <Unnecessary> Is this correct or no? As well when I first introduce them into the aquarium how do I go about acclimating them? <See WWM re... marine fishes period> When I purchase them they will either be in eggs still or newly hatched. Should I leave them in the bags and place those bags in the aquarium like most fish are acclimated. Or should I place them in bucket with the same water as in the aquarium and then half of the water from the bag they came in? <This latter> Please let me know as I want to offer these sharks the best living conditions I possible can, and want to make the transition from the store to my aquarium as stress free as possible. I look forward to hearing from you. Thanks, Brenden Hewko <Will need more room in time. Bob Fenner> Active Sharks for a 1250? -- 10/25/06 Greetings WWM
crew. <<Hello James>> I'm having a custom made shark
tank built for a client. The tank will be oval, 8' long,
6' wide, and 3.5' high. <<Neat!>> My client wants
an active swimming shark, so bamboos are out. <<Mmm, but therein
lies the problem. 'Active' sharks require much more
space/care than this tank can provide; not for a mature animal...and
your client shouldn't consider keeping anything that can't be
cared for long-term >> I've been looking into spiny dogfish,
smooth-hounds, and as of tonight Bonnetheads, but I have a few
questions that I haven't been able to find answers to yet.
<<Temperate to sub-tropical sharks, will probably require a
chilled system...and even the smallest will likely grow to about
4-feet>> Firstly, which shark do you think would have the best
long-term success in this tank, and what numbers (single, pair, three)?
<<Um, not what you want to hear but...two, maybe three Bamboo or
Coral Catsharks>> Lighting - I was thinking of three 150 watt
metal halide pendants. Do you think they would be a good
choice, or too bright? <<Should be fine if they can be raised as
bit (will provide nice 'glimmer lines') and rockscaping is such
the sharks can reach/rest in shadow if they wish>> On a setup
like this, are a UV sterilizer and ozonizer necessary components, or a
waste? <<Both can be of benefit if sized/utilized
properly>> Water flow - Being an oval tank, should I try to
create a circular current, or would sharks prefer a more reef
like/random water flow? <<I think a 'circular' current
would work well...especially if it can be periodically reduced/reversed
(six-hour durations)>> I was planning on using either 3600 or
2500 GPH pumps to create two closed-loop systems, and I can run them
through a wave maker if needed. <<Sounds good...do have a look at
'eductors' ( http://www.aquaticeco.com/index.cfm/fuseaction/listings.categories/ssid/460)
for multiplying/spreading flow>> The tank will be filtered with a
very large wet/dry filter and protein skimmer. <<Might I suggest
a large fluidized-bed filter in place of/in addition too the wet/dry as
these are able to react very quickly to shifting bio-loads associated
with these big, messy feeders>> Lastly, (for now) I've read
on here several times about adding vitamins to their food, and have
followed links you've given to where the answers are supposed to
be, but I have yet to be able to find what kind of vitamins they should
be given, or the amount. <<Mazuri "¢ Shark and Ray tabs
( http://
www.mazuri.com/Home.asp?Products=2&Opening=2) >> Thanks
in advance for your help. <<Happy to assist. Eric
Russell>> Regards, James Foley Thunder Bay Aquascapes www.tbaquascapes.com Black tip Reef Shark 10/16/06 Hi.
How long could I keep a Black tip Reef Shark in a 265 gallon aquarium
that measures 7ft L x 2ft W x 2ft H? Thanks <For the 4 to 6 week
quarantine period, and that's about it.>
<Chris> Suitable Shark(s) for the Home Aquarium?
10/10/2006 Hello again. I have been doing research on the Speckled
Epaulette and the Freycinet's Epaulette Sharks and have found that
they reach a maximum length slightly smaller than the other choices of
sharks that I have questioned (besides the Catsharks). What size tank
would you recommend for these shark species and where could I buy them
(if the right specimen for a tank of this capacity)? Many thanks,
<Chad, I have no direct experience in this realm, but have a very
high regard for Mr. Scott W. Michael - do see here for more
information: http://www.reeftectonics.com/shark_keeping.htm
Chad <Jorie> Shark Tank...How Many? How Big? -- 10/09/06 Eric, <<Chad>> What shark species could I keep in a 265 gallon tank? Possibly a few Cat Shark species? <<Mmm, not a 'few' but possibly a single specimen of one of the smaller species...and then probably not long-term. Atelomycterus marmoratus, the Coral Cat Shark is likely your best option here (a true tropical species), obtain as a juvenile or better yet as a developing egg case>> And also, what size tank could I keep an adult Brownbanded Bamboo Shark or an adult Epaulette Shark? <<Hmm...ideally, one in which the smallest dimension (length/width) is at least three-times the adult length of the shark>> Thanks, Chad <<Regards, EricR>> Re: SHARK QUESTIONS!! Sys., Heterodontid 10/2/06 Ah yes. Thanks! I have another question though!! I have a powerhead on this system to add a little movement. Should i remove it? <Possibly> Also I have a titanium ground probe to remove stray voltage from my aquarium but before I added it on i tried it on a tank with no fish (the tank am cycling) and when i touched the water it sort or gave me a little feeling of electricity!! <What? I would have this water/system tested... Make sure all electrified gear goes through a GFCI. http://www.wetwebmedia.com/gfcimarines.htm> Is that supposed to happen or am i not supposed to be able to feel it? <Assuredly not... Deadly dangerous> I removed it immediately and haven't used it since then!! would this harm my shark or help it? <Harm> i don't want to add any voltage or electricity to my water for good reason and concern of my beautiful prized shark!! Also I have a friend who is interested in a Port Jackson! He has a very large tank and can house it!! What information or tips can you give me so I can correctly advise him? Thanks again!! <Please read here: http://www.wetwebmedia.com/portjacksons.htm and the linked files above. Bob Fenner> Info about the Atlantic Sharpnose Shark 9/19/06 The Atlantic Sharpnose Shark (Rhizoprionodon terraenovae) is my dream shark that I would like to keep - if I ever had to money & space to do so). <Here on FishBase: http://fishbase.sinica.edu.tw/Summary/speciesSummary.php?ID=905&genusname=Rhizoprionodon&speciesname=terraenovae> The Atlantic Sharpnose is a small coastal requiem shark, that is native year round) to the southeastern (From the Carolinas to Florida) & entire gulf coast of the U.S. And has been found in New England waters during the summer months. It also grows to between 3-4 ft. And is a highly active species. I've also heard that it adapts fairly well to captivity (similar to a Blacktip reef) at least according to the people I talked emailed) who have kept both sharks. They also say that it's about as hardy as a Blacktip reef. A few keepers - even go as far as to say that it's a better alternative to the Blacktip reef - due to it's smaller adult size. Any thoughts? <Is better than C. melanopterus... though still has about the same space, environmental needs> While I done some research on this shark - I still have a few questions. Due to it home range I would tend to classify it as a warm water shark. Because I know from personal experience that this shark appears to very common off the NC & SC coasts) From early May - mid September when the water temps are between 75-84F. So do you think that it fair to call it a warm water shark, or that just wishful thinking on my part? <I'd say tropical to sub-tropical... can live in warm water for sure> The confusing part sort of), comes from when I was talking to an online dealer who cares sharks) -just to inquire (no actual plans to buy) about this shark. I emailed him, because I wanted to get a feel of this guy as I was considering buying other more "aquarium friendly" sharks - like Catsharks, bamboos or horns. Here's a few things that he told me about the Sharpnose. - They required water temps of less than 76F. <Interesting. The water is assuredly warmer in this fish's distribution range... though lower captive temperature is advised certainly... to allow for enhanced gas solubility, depressed metabolism> - They are only as hardy as Bonnetheads. <Agreed> - That they require a pool at least 16ft in diameter(4500-6000 gallons) - which I consider a good idea. <Me too> - They should be watched daily - since they don't adapt to captivity well. <Okay> Also I got the feeling he was down playing the Sharpnose, because he wanted to sale me a couple of smooth hounds. <Mmm, doubtful... The industry is made up (as is the larger human population) of makers, takers and fakers... these last two categories are not folks who last long... I suspect this dealer is "the real thing"... a maker. As am I> Saying things like talking about the smooth hounds) - -they are warm water sharks, -require smaller tanks, -and get to be about the same size, -and a hardier shark. What's your thoughts on this. <They are, I agree. Bob Fenner> More on Sharks - 09/14/06 Hello Eric! <<Hi Chad!>> Chad again asking a few questions for a friend (doesn't have internet). <<Uh-huh (just kidding matey <grin>)>> His name is Nathan, I just recently got him interested in keeping one of the many beautiful Elasmobranchs. <<Indeed>> I showed him pictures of the Brownbanded Bamboo, Epaulette, Cat sharks, etc. But he saw a picture of a Bonnethead and a Blacktip Reef Shark. <<Uh-oh...(sigh)>> He wanted me to ask you guys if he could keep a Bonnethead or a Blacktip Reef Shark in a 1000 - 1500 gallon system who's dimensions are 12ft L x 4ft W x 3ft H? <<Mmm, no...These are heavier, more active and much larger sharks...the Bonnethead grows to more than 5', and the Blacktip to more than 7'...would need a tank more than twice this size for either, in my opinion>> I told him that he probably couldn't keep them in there for more than about 8 - 12 months or so, but he wanted to know exactly how long and he wanted to hear that from experts, so I asked you guys. <<Well...I'm hardly an expert, but I have been around the block (or maybe around the bend!). I don't recommend keeping these sharks at all unless they are "started" in a system suitable to hold them at maturity. Often the "bigger tank down the line" never materializes...and rarely if ever can you just "bag up" the shark and take it to your local public aquarium or zoo, due either to local protocol or just the fact that they can't handle/don't have the facilities for the addition. There's also the matter of developmental retardation from keeping and 'growing' an animal under improper conditions and/or in "too small" an environment. I can't point you to any studies, but my colleagues and I deal with this on a daily basis. Mostly in the form of health and behavior issues associated with folks keeping "Tangs" in too small/crowded systems..."but only until they get too big for the tank" or "only until they can get a bigger tank"...get the picture? Few hobbyists have the money/time/capacity for keeping these magnificent creatures...maybe you (and your friend) are the exception, just be sure to match the species to the environment...and vise versa>> Thanks for your help, Chad <<Happy to share my opinions. Eric Russell>> Which Shark(s) for a 1,200 Gallon System? - 09/08/06
Hello! <<Hey Chad!>> My name is Chad and I find your
website ABSOLUTELY AMAZING!!! <<Many thanks>> I just
recently purchased Scott W. Michael's book on "Aquarium Sharks
and Rays" and it is great! <<Indeed>> I was wondering
what kind of shark I could keep in a 1,200 gallon aquarium with rounded
corners? <<Well Chad, admittedly sharks are not my forte, but
even at 1,200 gallons you're still best off keeping the smaller
sharks commonly known as "Cat" sharks and "Bamboo"
sharks. A trio would make an interesting display here I
think>> I will look forward to talking to you guys in the future.
Thank you very much, Chad <<Be
chatting, EricR>> Sharks, sel. 9/2/06 Hello crew! This is
Chad Howell again. I was writing to say I'm sorry about the last
time we talked , I don't think we got off on the right foot,
SORRY!!!!!! Anyway , I am planning on getting a 280-300 gallon
saltwater aquarium. I am extremely fascinated by sharks and was
planning on getting one , but I'm not exactly sure what kind of
shark to get. <Then keep investigating> I was thinking maybe a
Great White.....NOT REALLY!!!! Thought I would try to be funny. ANYWAY
, I'm seriously thinking about a Brownbanded Bamboo Shark or a
Hooded Epaulette Shark. Would these sharks be able to live there entire
lives in this tank? <Depends... on the shape of the tank of this
gallonage...> Would you recommend me put a pair of whatever shark I
choose in the tank so they can mate? <Is this what you intend?>
P.S. Sorry so many questions! Hope I didn't take up too much of
your time!! P.S.S. Hope we can become friends! Thanks , Chad Howell
<Ignorance is acceptable, rudeness not... If you would like our
help, respect yourself, our services. Bob Fenner> Bonnethead sharks... sys., sel., 8/11/06 Hi there I just found out about the Bonnetheads and so far they seem okay as pets (size) but I need some more info on them. First of all what is the minimum size for their tank? <About three times their adult length, twice in width...> Also, what is an average price for them? <A few hundred dollars> And last of all where could I get them for <Please read here: http://www.wetwebmedia.com/sharkselfaqs.htm and the linked files above. Bob Fenner> Leopard Shark, "Professionals", Morality - 06/14/2006 Hello, I visit your site from time to time but have never posted. At the moment I am in Las Vegas for a business trip and noticed that there was a Leopard shark swimming around in the big tropical tank behind the check in desk at the Mirage hotel. <Arrrrrgh....> There were a bunch of tangs, puffers, the usual tropical home aquarium fish. My question is, why would they have a cold water specimen in warmer waters if the care takers are suppose to be pro's at this? <A very, very good question, my friend.... and one to which I have no happy answer.> <<I do... Just as you get "fair odds" in gambling there, this Triakis is getting "fair odds" at living a long, healthy life. Id est, none. RMF>> Is it possible for the shark to be fine and not have a problem living like this <Not long-term.> or will it die because of the conditions? <Ultimately, yes. This animal, like all too many others, should be left to the oceans and large public aquaria that can properly house them.> Thanks, -Mike <Wishing you well, -Sabrina> To Shark or not to shark? 5/11/06 Howdy Crew! <What's up Jeff?> Was wondering what species to keep in a 220 gallon tank. <Of shark I would personally keep none 'just because my personal belief is that shark quarters should be pond size or they should be left in the ocean, however there are a few which people commonly keep in tanks of this size.> If I did a shark, I would like it to be a brown banded bamboo shark. <Potential size of this animal is 40'+ so beware of that'¦.may/will outgrow quarters.> And I would just have that one shark with possibly one ray (my LFS suggested I put a shark with a ray for the 220 gal.) <No tank is too small.> But I also like other fish such as triggers, <Not good to mix with sharks, will/can pick on sharks.> tangs, groupers, etc. <This is okay'¦but a heavy bio-load'¦messy, messy, messy.> I know it to be wise not to keep fish with sharks. <Well benthic sharks like the bamboo are actually not much of a threat to larger healthy fish, they couldn't catch them if they wanted too.> So it's either one or the other: shark tank or fish only tank with the fish only tank hosting a Clown Trigger, Picasso Trigger, Blonde Naso Tang, Brown Powder Tang, Stars and stripes puffer, ghost ribbon eel. <I would say go for the fish only for the best long-term display but pick one trigger or the other and drop the ribbon eel from the list completely'¦these are to be left in the ocean'¦.trust me it WILL perish in captivity, especially with the aggressive tank-mates you have mentioned.> Of course not all of them but the choices I would like to have. Anyway, what would be the best tank to have, shark/ray tank or fish only tank? <The fish only my friend, without a doubt.> Thanks <Sure.> Jeff <Adam Jackson.> Looking for a N.E. Atlantic dogfish - 03/26/2006 Bob, <Craig> I am struggling to obtain a lesser spotted dogfish for my native marine aquarium. any help you could provide would be greatly appreciated. <Is sold in the trade occasionally... in Western Europe... see fishbase.org: http://fishbase.org/Summary/speciesSummary.php?ID=845&genusname=Scyliorhinus&speciesname=canicula re distribution. Have not seen sold in the U.S.... I see from your email address suffix that you are from the U.K.; you should try the larger stockists about or try contacting Tropical Marine Centre re> I have 4 weeks to do so, because my 3rd year dissertation is 'olfactory behaviour of Scyliorhinus canicula' thanks Craig <Bob Fenner> Overseas Suppliers of Sharks 3/24/06 Hello all and thank you for taking time to help those who so need it. I am in the process of acquiring marine sharks for my large (35000 gallon) shark lagoon and was contacted by several overseas collectors. My question is if there is any way to verify that these companies are legitimate and if they have solid track records? <Mmm, only by referral really> Even taking into account freight costs, many times it is far more affordable to buy direct then from local suppliers. <Oh yes... do make your needs known of Public Aquariums "within driving distance"... as they are offered such animals by donation and enforcement agencies periodically... and don't have the facilities to handle all> Thank you again. Matt <Send along individual company or folks names and if I know of them, or others in their field/geography I will send your note along or offer input. Bob Fenner> Chained Dogfish (deep water chained "Catshark") 3/24/06 Greetings, Wet Web Crew. First of all, thank you for your prompt answer to a previous question that I had on shark egg care. I am interested in acquiring a Chained Dogfish or an egg. I have read that these are very hardy animals to keep, and that they stay around a foot in length. I have also heard that the only disadvantage is finding a captive source, because they are a deep-water Atlantic fish that is rare in the aquarium business. <I have never encountered this species in the trade> I am friends with the guys down at Wet Pets, and we weren't able to find a source for these mislabeled "dogfish". I did find one petting zoo / aquarium in Maine that had several specimens on display, but they weren't sure where to acquire more. I have experience with adult Catsharks and coral sharks, and have a sincere professional interest in the chained "dogfish". Any further information whatsoever would be thoroughly appreciated. Thanks, crew. -Peter Sewchok <Mmm, you might try to follow-up with the Public Aquarium... if they have theirs reproduce there may be a way to acquire these. Bob Fenner> Cat Shark...Other Stocking Question - 03/16/06 Crew, <<Eric>> I appreciate your input. <<My pleasure>> I am going to leave the shark out of the mix. <<You will both likely be happier for this.>> It will get a little too big for my tank I think. <<Me too>> Now I think I will plan on a few tangs, a queen angel (my wife loves this fish), a couple of pygmy angels, 5 to 7 green Chromis, and a harlequin tusk. My new question is on the harlequin tusk. I am not very familiar with this fish and I have read differing opinions on compatibility, with some material indicating the tusk will eat small fish and others saying it's safe. Can green Chromis and other small fish (clowns) be safely kept with a tusk? <<In my experience/estimation, yes.>> Thanks again!!! Eric Skikiewicz <<Quite welcome, EricR>> Leopard shark... abandonment issues 03/07/06 I have had a leopard shark in a 1500 gallon pond for about the last 3 years. I am now forced to move back up north (I am in Florida now) due to my parents becoming ill. I am not going to be able to get my pond set back up soon enough to bring her with me. I was wondering if you knew the contact info for sea world or any other aquarium that I could possibly donate her to? This all came up very suddenly so I need to try to get her placed as soon as possible. Thank you for any help <... you can try contacting... Maybe Bruce Carlson at the new Atlanta Aquarium... but not good odds. Bob Fenner> Saltwater questions.. Shark sel., systems 3/4/06 Hi Bob, <Joe> I have a few more queries which I'd like your help for. <Will do my best> Firstly, I have a chance to purchase a Colclough's Shark, and knowing how rare these are, would like your opinion on whether these sharks might live well in my tank. <The genus does about as well as any captive shark species. Have never seen this fish in the trade in the U.S., but sometimes sold in areas closer to its Australian origin: http://filaman.ifm-geomar.de/Summary/SpeciesSummary.php?id=5893> My area of concern is the temperature range to which they are accustomed. Scott Michael's book states this range as being between 18 and 24 degrees Celsius. We have just come out of Summer in Australia and I have noted that the tank maintains an average temperature of about 28 -30 degrees Celsius. <Mmm, yes... I would employ a chilling mechanism here for sure> While I am certain that this will drop a few degrees during the winter, I do not want to purchase this shark only to let it suffer next summer. Do you think the shark will be comfortable given this temperature? <Not likely. We have a similar "challenge" here in S. California with folks trying to keep Leopard (Triakis semifasciata, now banned I'm given to understand), and our local Port Jackson (Heterodontus francisci)... some success during the winter months, almost none w/o chilled systems during the summer> If not, I would prefer getting an Epaulette which has a warmer range. <A better choice w/o the chiller...> Secondly, I am aware of a certain product on the market ("Deniballs T by AquaMedic) which claim to reduce nitrate by slowly dissolving over a period of a year or so. Is this product essential to a successful marine aquarium or is it simply a money burner? <Mmm... a worthwhile expedient for some... Nitrates can be a "menace"... but given other means, not necessary. You do want to keep these at a minimum in shark systems... less than 10 ppm.> Are water changes enough to control nitrate? <Well... not unless you're super-wealthy, to afford bunches of salt mix, or have a hose pipe from the sea to maintain an open system... Other means are detailed on WWM... Should be reviewed> Since I will be keeping a shark and ray, among other fish, do they have a specific low-tolerance to nitrate?? <Yes! Any is of trouble really...> Finally, are cooked shrimp better/worse than raw shrimp to feed to my fish? (In regards to nutrient value and disease carrying potential). <Worse nutritionally> Thank you very much for your time and effort, Joe <Thank you for helping us all by asking, sharing. Bob Fenner> Looking to buy sharks - 02/20/06 Hello Bob <Aviv> I'm interested in buying many different kinds of sharks. The sharks must be from the Red Sea !!. Can you help me? Best Regards Aviv Levy Curator The Underwater Observatory Marine Park Eilat, Israel <Mmm, have been to your facility... I would look to training some of the local fisherman there to down to Taba re how to transport suitable small specimens... maybe provide them with large Styro boxes... instructions on how to pass water over the fish's gills through their mouths... or set aside monies to go catch them yourself. Bob Fenner> Seeking Sphyrna tiburo - 2/11/2006 Thanks a lot for your help. Other questions I looking for 4 tiburo sharks small for a big museum .I ask to dynasty marine without result .Normally the season for this is June have you a contact for these fishes . Best regards David <Dynasty would be my first choice for Bonnetheads as well. Did you talk with Forrest Young himself? You might try ORA in Ft. Pierce or Proquatics... for a lead to a local collector. Bob Fenner> Shark sel. and ray system 2/3/06 Hello, I have done tons of research on sharks and from many websites, including yours, the best shark for a smaller home aquarium, would probably be the marbled cat shark or also known as Indonesian speckled carpet shark, Hemiscylliidae freycineti, closely related to the Epaulette shark. This shark, not the epaulette, reaches a maximum size of 28 inches, but some sites say 22 to 24 is maximum. I have recently discovered another type of shark that is not advertised for sale on the internet but was at my LFS, it was the Gulf Cat shark, Asymbolus vicenti, <You've misspelled the name: http://fishbase.org/Summary/speciesSummary.php?ID=789&genusname=Asymbolus&speciesname=vincenti> maximum length at 23 inches. Do you have any info on this particular species? <Mmm, nope. Have never seen it in the trade or captivity> Can I keep it with live rock or is the risk of infection to much. I thought it should be ok do to its natural habitat is in rocky areas. One more question, can I keep a blue spotted ribbon tail ray, Taeniura lymna, in a tank that is 4 ft long, and 18 inches wide? <... possibly. Though very few live in captivity in any size system for long. Not a good gamble> The only reason I ask this question which may sound crazy is because some sites say a 75 is minimum, <Get longer than this sized box> people I know say this would be a fine size, and that my local fish store says that it will be ok. These rays in particular mostly lay in the sand unless agitated or frightened, or in times of feeding. I know they are not the hardiest and don't have the greatest survival rate but in my experience, I have been told that there was no way I could keep a blue ribbon eel or banded snake eel alive, and that the minimum size tank for a banded snake eel was 180 gallons according to Scott Michael's book and I have been successfully keeping both specimens in a 55 gallon tank for over 2 years. This makes me question recommendations. I know this is a lot to digest, just looking for more info and input. Thank you and your site for continuous help, Chris <In good hands, care, animals can be kept in smaller confines... are they happy, long-lived? Bob Fenner> Carcharhinids not in captivity - 01/24/06 Hi, I was wondering if you had any black tipped reef sharks for sale? If you do, how much are they? Can you ship one to Seattle, Washington? Thank you very much. <We don't sell livestock... read on WWM re this species use in captivity... and save yourself time, money and heartache... oh, and the sharks lives. Bob Fenner> Coral
Catshark... selection, systems 1/17/06 Hello,
<Greetings> I was interested in getting a coral Catshark, and was
wondering if you could recommend any vendors that can ship
or are located near Philadelphia. That Fish Place
in Lancaster stocks banded cat sharks and they currently
have a Wobby (nothing I have any desire to
keep really). The little Orectolobus they have is
maybe 12 inches long, hopefully it won't end up jammed
into a 55 gallon tank! In any event that is a
species that grows far too large for my keeping. <Mmm, TFP would be
my first choice... they can order if they're available at the
time... as the folks know what they're doing there, and this would
be the shortest (further distance) for the specimen to travel. Marine
Center, Marine Depot can likewise order/receive/re-ship such an animal
to you> The two species I had interest in were Atelomycterus
marmoratus, and Atelomycterus macleayi. I have
not been able to find them very easily for sale
though. Do you know the basic differences between the
species? <We've been over this. I encourage you to buy Scott
Michael's excellent work on the captive husbandry of these
animals... and read it thoroughly> I was leaning towards
getting the marmoratus if possible, but the macleayi is the
only species I could find in the trade. <Both are offered from time
to time... they are wild-collected... and folks "get around"
to them if/when they can...> The enclosure I have setup for the
shark has been running for a while now and is cycled,
currently the tank is empty of fish. The tank is a 125
with a sand substrate and that's it. There is
no rock, and a hiding spot would more than likely just end
up being a chunk of large PVC pipe. <Mmm, I do advise you to make
some sort of larger, heavier structure, with space behind it... to
allow your shark to get out of view...> I would
like to add a large tang to the tank to go with the shark,
but that will come later. I do have a spare 200
gallon tank in the basement, and if need be I will
eventually set that one up for the shark and any companions
(currently I can't justify such a large tank when the
shark I am buying may come to me at under 10 inches in
length! Do you have any species specific care advice? Thanks, Steve
<A great deal... unfortunately, am farther behind on other
projects... rather than writing about even the more suitable shark
species for aquarium use. Perhaps you would compile this information,
write it up in an article format... I will gladly help you sell/place
it in the e- and paper 'zine mag.s. Bob Fenner> Nurse shark spitting water out of the tank 12/21/05 Ok here isn't something I have seen before but the shark is doing it most nights. Once it become night and he becomes active, he will swim along the top of the tank. He will then go up to the top of the tank and spit water. There is one section that is not covered and he send the water flying out. any reason for this particular behavior? <First off Peter, no home aquarium is large enough to keep a nurse shark in conditions to its liking. Why do pet shops sell these, they need to be banned. Are you aware these sharks attain lengths of 16 feet? They will NOT adapt to aquarium conditions and don't listen to anyone who tells you their growth can be controlled by smaller feedings or by the size of tank they are in. His behavior is largely due to the negative conditions he is living in. Stress, my friend. It won't be too long before he will be attempting to jump out. I'd try to find a home for him such as a public aquarium. Sharks are best left in the sea where they will do the most good. James (Salty Dog)> 'Cat' Shark Care 12/17/05 Hi, <Hello.> thanks for all your info it is very useful... <Quite welcome.> I am purchasing a 250 gallon tank to house a baby band cat shark, hope to be an adult cat shark some day... That is the only fish I plan on having... <Good sharks should be kept in species only tanks.> What kind of filtration system do you recommend? <A VERY large protein skimmer, perhaps some type of bio-media (since you won't be able to keep copious amounts of Live Rock in the display) or better yet a live rock/macro-algae refugium and of course LOTS of water flow.> Is this size tank big enough? <It's hard to say there are a few sharks labeled with the common name cat-shark (Including Atelomycterus marmoratus and Chiloscyllium punctatum, the first stays under 30' while the second grows to over 40' -- big difference), and while the volume of the tank (250-gallons) sounds good on paper, it would help to know the exact dimensions of the tank. Surface area is very important with these animals.> How is the maintenance for this fish? <Sharks are not for casual aquarists, be sure to research the needs thoroughly, re: disease, diet and so on., read the FAQ's here on WWM and check out Scott Michael's, 'Sharks and Rays.'> Thanks for your help... I have also donated to Amazon Honor System... <Thank you for this, Adam J.> Black Tip Sharks 11/22/05 Hello <Hey, Mike G here.> Hope you can help me. <So do I. :)> I am after purchasing 2 black tip sharks for an aquarium tank. <Hope it is a very, very large aquarium.> Where would I go about finding them, <Not sure... not exactly a readily available species (which is a good thing, for the most part) and have you got a estimated cost? <No, sorry. I'd guess somewhere around $400-$500 for a decent sized one, but I've yet to see them offered for sale, so...> regards <Good luck on your search!> David Fry <Mike G> Shark Selection 11/9/05 Dear Mr. Fenner, <Maria> We are Polish company which is doing marine aquariums for private people as well as other institutions in our country. We also plan to open Oceanarium in Gdansk. <How nice!> We consider you as an expert and we appreciate you for your knowledge about sharks and therefore I would to kindly request you for your opinion and help. <Okay> One of our customers asked us to order for him a Blacktip shark to be settled in a tank with capacity 6000 l. Our knowledge is not sufficient to decide wither it is big enough to prevent it from hurting itself. <Mmm, about 1,600 gallons... should work out only when this fish is small... for a few years (2,3...), though not for its entire lifetime> Therefore I would like to kindly ask you for your opinion concerning this issue. If you consider that it is not big enough that what other species could be suitable for such a aquarium. <The Epaulette, Bamboo and Hornshark families have some suitable species... Please read here: http://www.wetwebmedia.com/sharkselfaqs.htm and the linked files above> The second thing is, that in the mentioned oceanarium we would like to create a tank with capacity 40 000l, where we would like to settle as many different species of sharks as it is possible taking into consideration their safety of course. We would be grateful for your suggestion and list of sharks that in your opinion could safely inhabit one tank. <Mmm, some species can be mixed... likely you, your customer/s want more "sharky" sharks... ones that swim about, hover off the bottom (unlike the families suggested above)... there are some smaller species here... I would take the time to search through Fishbase.org, get/use a copy of Scott Michael's shark and ray book...> <<I also suggest they try to contact the good people at the Long Beach Aquarium of the Pacific. Marina>> Thank you in advance. I am looking forward to hearing from you soon. Yours faithfully, Maria Chodorowska Siren Group www.siren.pl <Welcome. Bob Fenner> Hunting for eels! 11/6/05 Hi, my name is William; I live on an island in the Caribbean. I live on the shore and lately have been chasing after what I believe to be chain-link morays. <Most common species in shallow water there...> It seems to be tougher than I expected. I was wondering if there are anyways of attracting these magnificent eels to a certain area. Just the other night I went to look for them since they are nocturnal, but I believe they went out to sea for feeding. The area I usually find them in is a small cove covered in spiny lobster, parrotfish, sea urchins, and green morays. Recently I have seen three of them in the span of two days. Two of them were large averaging about one and a half feet long. The third though was quite skinny and was about eight inches long. Any help would be greatly appreciated, thank you. <Can be caught in "minnow traps" incorporating a fyke on one/both end/s... with bait inside. Or with a barbless hook and line, with something meaty for bait... or via a small fence and hand net... Please read here: http://www.wetwebmedia.com/collmarsdvg.htm and the linked files above, and the accounts on moray eels archived on WWM. Bob Fenner>
Domestic Lantern Shark?!? part 2 8/19/05 Are there any other sharks almost that small? <See here: http://www.wetwebmedia.com/sharks.htm Bamboos and Epaulettes are about the best tropical species and horn/port Jacksons are about the best temperate species. As Bob stated, systems of at least a few hundred gallons are still necessary with indoor "ponds" working best. See here: http://www.wetwebmedia.com/ca/cav1i1/pondDIYCalfo/diy-pond.htm Best Regards! AdamC.>
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