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Reef Circulation Question 12/28/07 Good Day Crew, <Hello Eric.> (I'm sorry if a similar question came through just now, but my email system "crashed" right before the email went off and I'm not sure if you got it..) Thank you (to everyone) for a truly beneficial service. I read almost every night, sometimes for hours at a time. My reef tank would not be even close to what it is now without this site. (It's now my 'Healthy Obsession'). I would also have no idea what an Aqua C Remora is (Excellent Product by the way). <Very nice to hear of your success.> My question is as follows: I am looking to improve my circulation. I currently have a 55 gallon (standard 4ft length) Reef which consists mostly of Polyps and moderate flow requiring Corals. I have three Powerheads, the skimmer, and a Whisper 60 Filter (changed and cleaned often to prevent build up). -My first PH is a MaxiJet 1200 which is located on the left side wall, facing center. -My second PH is an AquaClear 70, located on the right side wall, also facing center. -The third is a MaxiJet 600 with a rotating deflector attachment. This is facing 'front and center' The problem with this setup is that the MJ 1200 vastly overpowers the other two, and the stream is such that it creates a high level of Laminar flow. (The AC 70 is old, and although it has been cleaned thoroughly, is very weak, only producing about ¼ of what it's supposed to. <OK> I have a few options. The first is that I could ditch the powerheads (most anyway) and add an Ocean Runner PH2500 (650 gph) which I have that's not being used, and attach that to a PVC pipe system, where I could run it along the top of the aquarium. I could drill/etc. holes in the pipe so it would spray downward. I could add a few other powerheads for supplemental flow, but this should be fine, correct? <This could work, by the time you add the plumbing to the pump you will likely have less flow than what is currently in your tank.> I figure if you don't include the skimmer and filter, it's still over 10x per hour of circulation. <It is surprising how much the plumbing will reduce the flow of the pump, perhaps even in half with a spray bar.> Another option would be to keep the existing powerheads except for the AC 70 and replace that with another MJ 1200, and put these toward the top of the aquarium. <Yes.> Out of those two, which is the best? <For my time and money, adding another MJ1200 is what I would do.> Also, if you have any suggestion that I'm not thinking of, I would love to hear it. I have been reading a ton, and discussing it with fellow reef enthusiasts who seem to think the first idea is better than the second. <More and more reefers are getting away from powerheads and going to closed loops. If you don't mind the look of the powerheads they give you a more adjustable flow pattern and are cheaper to run. It is a matter of personal preference. I own the particular Ocean Runner pump you have and love it. But, the two MJ1200's will definitely outflow the pump.> Once again, Thank you for the help. Eric <Welcome, I hope this helps you decide, Scott V.> Tank setup help, Reef 12/26/07 Hello Crew! <Hello Patrick.> First off let me begin by telling you how thankful I am to have stumbled upon a site dedicated in helping hobbyist in achieving their goals. I have found your site a great help in the decisions I make for my tank and have had great success. <Happy the site has helped.> I currently have a 135 gallon reef setup built into a wall with 240lbs of live rock, and a DSB. It is lit with three 250w 14k MH. Its been established for about 6 months. Both sides of the tank are viewable so all the plumbing is located on the sides of the tank. Due to the design of the stand, the sumps below consist of two 20 gallon tanks joined in the middle by three 1 1/2'' pvc pipes. The water flows into the refugium, then through a poly filter, along the pipes into the skimmer area, through another poly filter, then to the return pump. I want to upgrade the tank as far as size goes. I have found a 170 gallon that is almost the same size footprint as the old, only a tad more depth and a lot more height. <OK> There are about 30 corals in the tank, mostly LPS consisting of Euphyllia, elegance, chalices, and blastos. I have a 60 gallon qt I can keep them in during the tank exchange, but it only employs PC lighting, a heater, and a couple high flow powerheads for circulation. How long can these species withstand these conditions? <Long enough for the move.> Also, since the tank is built into the wall, the exchange would be fairly quick. <Good.> The sand bed is a 6'' DSB in the old tank, but should I use his same sand in the new one? A nutrient spike is my main concern. <Assuming your sandbed is good now, I would remove the top half, rinse the bottom half, place the bottom half in the new tank with the original top half placed on top of it.> I am considering starting the sand bed over with new sand, along with some old sand to "seed" the new bed, but what ratio should I use if I should go about that? <A sprinkle of sand to 50/50 mix, or even more.> Would I have to wait for the sand bed to establish all over again before adding the corals? <No, I am assuming that you do not have an established bed in your quarantine tank either. I would just make the move.> Would switching setups in a day be too much stress for the corals? <Quick one day move will be the best.> If the rock is kept out of water during the switch, would the die off cause high nutrient levels? <I would keep it in water, easy enough with a few $5 Rubbermaid bins.> Should I upgrade the lighting if the new tank dimensions are 72x18x30? I'm looking to start keeping SPS but I'm hoping I can get away by placing them toward the top. <Your lighting will be fine.> The levels in the tank is currently: Ammonia 0 Nitrite 0 Nitrate 10 Ca 480 Alk 9 dKH Mg 1500 pH 8.1-8.4 Phos. undetectable Is all this water transferable to the new tank? <Yes, reuse/save all that you can. Your Ca and Mg need not be quite so high.> Sorry for the overwhelming amount of questions, I just want to make sure I do this right the first time around. Thank you for the help! Patrick in Cali <Welcome, sounds like you will do just fine, have fun, Scott V.> Metal in reef aquaria 12/19/07 Greetings Crew <Hello Mark.> I am in the process of starting a new 100 gal reef and would like to get it right the first time with your help. The lighting is installed, a new Euro-Reef skimmer is in the sump, and I'm ready for live rock. <Congratulations> What I'm not sure about is the use of metallic objects in reef systems. The metallic objects I refer to include a titanium heater, a submersible Mag 12 pump which utilizes stainless steel screws to fasten the pump chamber to the motor, and an Aqua UV ultraviolet sterilizer. The sterilizer is my main concern here as it is equipped with a sleeve wiper actuated by a 1/4" rod about 8" long. All these items have been used in a previous setup with no appreciable corrosion so the stainless is of good quality. I have always made a point of avoiding metal fasteners and clamps where contact with the water is likely but these items are supposedly made for this application. <Good practice.> Do I have cause for concern? <No, these items can be used no problem.> Thanks, Mark P. <Welcome, have fun, Scott V.>
Reef Start-up 11/4/07 I am getting a 75 gal aquarium. I am looking to do a reef set up (first one) with LR, LS, soft easy corals, and docile fish. <Welcome to reefing!> I will approx 2" of substrate and plenty of live rock. I have a bit of experience with the marine set-up; however I have been researching the sump set-up and am a bit confused. With using all I mentioned above, will the tank cycle itself, or will I need to add a cocktail shrimp? <Your substrate should be either shallower (.5 inch or so, will trap less detritus) or deeper ( 4-6 inches, provides some denitrification). Cycling a reef tank with live rock has more to do with curing the rock rather than the traditional cycling you are probably familiar with. The site has a great article on cycling live rock, no shrimp required to cycle. http://www.wetwebmedia.com/ca/volume_2/cav2i3/Live_Rock/live_rock.htm > The tank is coming with a wet/dry sump with bio balls. I understand bio balls are not what you want filtering your reef tank. <They are not. > Am I correct to use live rock and live sand (refugium) where the bio balls would go? <Yes, I would also recommend lighting it on a reverse cycle from your main system and including a macroalgae such as Chaetomorpha. This will provide a more stable ph and some nutrient export.> Should I continue to use the blue filter pad to filter the tank water prior to the tank water entering the sump where the live rock sits? <Some people do, some don't. I don't. If you do use it just be sure to clean the pad quite frequently.> Should the protein skimmer pump the skimmed water into this live rock compartment or the return compartment? <If you can I would try to process your water skimmer, refugium, and then return. This will let your pod population from your refugium enter your main tank without interference from the skimmer.> Would you recommend using a UV sterilizer at first, or at all? <I am not a fan of UV sterilizers. They have their uses, I just feel that the average tank benefits little from them.> Do I need to rinse the activated carbon before I place it into the sump? <I would, just to remove dust.> My other 2 tanks were FOWLR with bio balls in the sump, but I want what's best and easier for my new tank. I plan on taking my time but I want to set it up and cycle it correctly first. Thanks in advance, Jason Wagner <You're welcome, it sounds like you are well on your way to a successful reef tank. Thank you, Scott V.> Re: Reef Start-up 11/8/07 Thanks for the speedy response!! <Welcome.> Great advice, that is what I will do. I will be starting my tank up on Friday I'm sure I will have a few more questions for you in the next coming weeks. <No problem.> For now, have you heard of using panty hose as filter bags for carbon? If so, would you recommend? Jason <Yes, they can be used assuming that they are clean. No lotions, detergents, perfumes, etc. The thing about nylons (and the nylon sold specifically for aquariums) is that they tend to trap air and the water tends to just flow around them. I use and highly recommend this Rio product http://www.petmountain.com/product/cartridges/510039/rio-pumps-rio-bio-bead-cartridge-1-pack-110.html It comes with media, just dump it and use your carbon (use a fairly high quality carbon). It is completely reusable, does not trap air, allows flow through the carbon and costs about five bucks. Have fun Scott V.> Thanks very much for the information. <You are very welcome.>
55 Gallon Reef Tank... setup 10/22/07 Hello, <Hi Adam> I have been reading your site for many many months now as I started my first reef tank around 8 months ago and am trying to learn everything that I possibly can about the hobby. I have a few questions concerning my reef setup. <OK> First question is: I recently added a large piece of live rock from a LFS, before the addition of the rock, I had very little problem with algae growth, a small patch of hair algae on one piece of live rock and some in the overflow box. After the addition of the rock I have had a Cyanobacteria outbreak. It is centralized on the sand surrounding the newly placed live rock. I have vacuumed and performed water changes for around a month now trying to rid myself of it. Tank parameters are all optimum (zero nitrates, zero nitrites, zero ammonia, PH 8.2, I have not tested for phosphates in a while but last I checked it was minute, Salinity is 1.023-1.024, I use Bionic as my calcium and buffer, Water changes performed with a 5 Stage RO/DI at 8ppm, and all water aerated for 24+ hours. I have a 45 gallon sump with a trickle filter (bioballs), an ASM G-3 Protein skimmer producing dark green mush and a separate compartment with a refugium. Various macro algae and several pieces of smaller live rock in the refugium) I still have blue green algae. My guess is circulation. I use a Mag 7 for the return pump and it has only a single outlet into the tank. There are three power heads 2 190 GPH and 1 Maxi Jet 1200. I have been looking at various "upgrades" for this problem. One idea was to go with a Tunze Stream 6101, a SCWD on the return line, and purchase an upgrade kit I have found for the Maxi Jets that changes them over to a propeller style power head and says it produces around 1600 GPH of flow. I would place the Tunze and the upgraded Maxi Jet at opposing diagonal angles with the Tunze on a lower flow setting. (I am thinking of going with the Tunze because I am currently finishing the basement and am incorporating a 210 gallon tank into it, I would like to use as much of the existing equipment from the 55 gallon as possible. Hence the LARGE ASM G-3). Would the Tunze and upgraded Maxi Jet produce too much flow in the small tank and turn it into a hurricane of sorts? Or should I try to use a series of 3-4 Maxi-Jets (maybe a couple with the upgrade kit) and a Wave timer? <With your future plans, I'd probably go with the Tunze. This model has a flow rate of 660 to 3170gph. You could use it at the lower flow rates for your 55. Since this pump does not produce a high flow rate in the core area of the water jet, it will not give you the hurricane effect.> I know this will depend on my inhabitants. Currently the 55 gallon has approximately 50-55 lbs of live rock and a 4-5 inch sand bed. All larger pieces of rock and not too much rubble. It houses some pulsing Xenia, a Frogspawn, a large Pink Leather (similar to a devil's hand?), Moon Coral, a Pink Brain, Green Ricordea and some Star Polyps. Fish wise: there are 2 Perculas, a Bar Goby, a Watchman Goby with Pistol Shrimp, 2 Green Chromis, a Yellow Tang, and a Neon Goby. Also a myriad of cleaner crew creatures. I have thought of trying some Acro frags and maybe a small clam (that could grow larger in the big tank when finished), but am afraid that the T-5's being utilized ( 2- 55watt actinics and 2 -55 watt 10K's) are not enough and that the bio-load in the tank may be getting to great to house any more animals. (please advise?) <Yes, will not be enough light for clams and Acro's.> Last question, I have a pink and blue brain coral (It is bright pink with a camo blue pattern on it, I had never seen one of this pattern before and jumped on it after researching brain coral care.) Despite my research I have noticed that even though during the day the coral is large, expanded and VERY fleshy during the day, at night when it opens to feed (tentacles displayed) the tissue seems to be receding around the rim? (I was going to attach a .JPEG but could not get a good picture due to glare.) I have had the coral now for several months and I thought it was doing excellent. I moved it from mid tank when I noticed the recession a couple of weeks ago. I thought it may have been too close to the leather coral and too close to the lights. <The two T5's are not enough light for this coral.> I moved it to the sand bed, but still under full lighting and not in the shade. The recession does not seem to be getting better, but as I said it looks great during the day. Is this just what it should look like normally and I never noticed it, or is there something happening to my favorite coral? ( I spot feed it E.S.V. spray dried plankton 2 - 3 times a week) <I'd put it closer to the lights and feed meatier foods a couple times a week. Shrimp and clam in a minced preparation works well in this regard. Do feed at night when the tentacles are expanded.> I have pealed over the Wetwebmedia website and found no information on the upgrade kits for the Maxi Jets, (it is available from Marinedepot.com and is marketed as a Maxi Jet 1600 Upgrade Kit, it has two 5 star reviews, but I am still skeptical) and nothing directly available in the way of the Tunze 6101 in a 55 gallon tank. <The upgrade kit for the Maxi-Jet's is news to me, but by looking at the kit, I wouldn't be afraid to try one and see how they work. The Tunze 6101 is rated for tanks from 52 to 528 gallons so no worries here. Another alternative for the Maxi-Jets is the use the FLO Rotating Deflector. I use these on my Maxi-Jets and they work quite well. Drs. Foster/Smith has the best prices on these, I believe around nine bucks.> As I said I would like to be cost effective in my planning, but ultimately I want to do what is right for my tank inhabitants; for this tank is my pride and joy and their happiness is of my utmost concern. :) <Good to hear this.> Sorry for the long email, but I have been building up questions since I joined you guys in this great hobby. Almost all of them already answered thanks to you guys and your wonderful site. <Great, and thank you! James (Salty Dog)> Thank you, Adam Stocking Level/Upgrade Questions, reef
10/13/07 Hi , <Hi Gordon> I have a question regarding some
changes I plan to make to my tank and wanted to get your input.
<OK> Setup, (Quasi-Reef): 75 gallon tank (built-in overflow with
two water returns) 20 gallon sump (Lifereef no bioballs) 36 inch
Lifereef protein skimmer 2 Little Giant water pumps (model 4-MDQX-SC,
1325gph at 1 foot I'm guessing I get about 1080gph at 6 foot),
skimmer and water return Chiller (keeps the tank between 78 and 79
degrees) Coralife power compact light with reflector (2 65 watt 10K and
two Actinic) Power heads Stock: 100 LBS Fiji live rock No substrate,
(wife hates it when it turns green/brown/white) <I have one of those
specie (wife) also.> Various sponges etc encrusting the live rock 3
Rose Bubble Tip Anemones Side question here I noticed in some of the
other articles you have that my lighting might not be considered
adequate for the BTA's. Both were about 6 inches in diameter when I
bought them and they are larger now. One split and both halves are now
8 inches in diameter. The one that did not split is about 11 inches in
diameter, (dominates one side of the tank, it's a monster). I have
never seem them completely deflate and even when the tank lights go out
they just close down some. Color is good; tentacles are bright rose in
color, long and flowing, (they bubble up more at night). Base is
white/pink; with bright green coloration throughout (esp. under actinic
light) foot/trunk is pink. They have been in the tank for just over 2
years now. I also feed them pieces of silverside every 4-5 days. They
readily take food and will enclose the food. The tentacles feel sticky
to the touch when I feed them, (nematocyst firing?). They do
occasionally move around a bit, just recently replaced my bulbs, so I
guessing that may be why as the light intensity has gone up some. Based
on what I've read everything seems to indicate that are healthy and
doing well. What do you think? <By your description, it sure seems
like everything is going OK for you. BTA's do not require as
intense a light as most other anemones. What you have appears to be
adequate.> 2 True Percula clowns, (living in the largest BTA and one
of the splits) 1 large Bi-color Angel 1 small Yellow Tail Blue Damsel 1
large Three-Stripe Damsel <Trouble makers.> 1 Dwarf lion 6 large
Turbo-grazer snails 1 large Coral Banded Shrimp 1 small polyp rock, (6
small Green Star Polyps and 10 brown Button Polyps), hopefully this
will make a good starter. All are fully open and waving in the breeze.
Water parameters are all with acceptable values, except phosphate which
is a little high 0.01 to 0.02, (time to change the Phosguard).
Supplements Iodine, Strontium, Coral Calcium, Coral Vital, Selcon and
buffer as needed I feed silver sides, flakes, brine shrimp frozen,
freeze dried Tubifex worms, Mysis shrimp, live brine shrimp on
occasion, saltwater pellets, Formula One (frozen), Phytoplankton,
powdered and liquid. My tank has been going strong since March 1999 and
I'm finally happy with it to the point that I want to move forward
with my planned growth. Sorry to get so descriptive, just wanted to
make sure you had a good overview. <Yes, it helps.> My plans for
future expansion over the next year are as follows in the following
order: 1. Add another 25-50 lbs of live rock, flat pieces to layer it
down to the bottom from my two existing piles of live rock to cover
most of the bare bottom. I want to add a variety of different
corals/polyps etc and hopefully have them grow to cover this base rock
to get a sort of flowing living carpet look. I hate the bare bottom,
(ugly, but I'm not going to win that battle with the wife). <Too
bad, a coral sand bottom does offer a haven for helpful critters to
propagate along with aiding in keeping calcium and alkalinity levels
up.> I would like to include pulsing Xenia in this mix. <A good
choice and fast growing.> Do you have any suggestions on good
species to add? <Mmm, no, not with your present lighting. Your
choices seem well balanced.> 3. I think I need to add some more
critters as a cleaning crew, but I'm worried about adding too many
as I don't want any to starve, plus I'm concerned about buying
a pre-packaged cleaner crew since I have no substrate for them to
shuffle through. <Yes, I'd just add more hermits and snails for
now.> If I get one of the packages some of the mail order houses
sell I want to make sure that the species will survive in my
environment. I can't get them locally as my LFS just doesn't
carry that kind of quantity, nor at reasonable enough cost. What would
you suggest? <As above.> 4. I would like to add a small school of
fish 4-6 I was thinking of Green Chromis, but my wife doesn't care
for them, she thinks they are too plain. Can you suggest some
alternates that will get along with their tank mates? <There are
some nice ones, but with that bar brawler (Three Striped Damsel) you
have in there I wouldn't recommend what I had in mind (Pajama
Cardinals).> I would like add the following after the above 5. One
Cleaner Shrimp 6. One Royal Gramma 7. One Small clam (Derasa? Near the
surface to take advantage of the light) <Don't think your
lighting is intense enough for Tridacna Clams, and they seem to do
better on a sandy bottom.> 8. One small Blue Tang. <I'd stay
away from this guy until you have larger quarters for all these
fish.> What do you think? Is my plan too ambitious for the size of
tank, experience level etc I have? <To ambitious for the size of
tank.> I am also planning to upgrade the tank to a 90-gallon in the
near future; my sump is rated to 150 gallons and skimmer to 200
gallons) <Much better going for a longer tank than a higher one.
Doesn't make much sense to spend the money to upgrade to a 15
gallon larger tank, and all you are doing is adding height to the tank,
no increase in swimming or surface area.> I also want to add that
you guys have a great site that has been of untold benefit to me ever
since I got into saltwater. Keep up the good work. <You're
welcome. Gordon, in future queries, do cap the names of fish,
invertebrates and proper nouns. We just do not have the time to edit
queries before they can be posted on our web site. James (Salty
Dog)> Gordon
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