Surgeonfishes: Tangs for  Marine Aquariums Diversity, Selection & Care New eBook on Amazon: Available here New Print Book on Create Space: Available here by Robert (Bob) Fenner

Feeding a Finicky Kole Hi guys how are you? <Doin' Great! Scott F. with you today!> Question for you , What are some recipes for the creation of  good fish food. I have a Kole tang that is loosing weight and getting bone thin. What can I do to bring him back to a healthy weight. He is in a 72 gallon reef tank with about 70 pounds of rock he grazes all day but there is insufficient algae for him. <Well, one of the easiest things you could do for him would be to purchase or "cultivate" some "feeding rocks" with have lots of microalgae on them, and rotate them into his tank a couple of times a week to supplement his regular feeding.> Another concern I have is he attracts ich easily I battled ich by taking all the fish out of the tank and setting them in a hospital tank for a month, they had all lost the parasites after a couple of treatments of copper. Reading a article you have on ich I decided to break down the 72 gallon tank and give it a cleaning, using about half of the existing water I also removed half of the aragonite sand bed permanently and the other half  was washed and returned to the tank. The only other thing I noticed is my other fish are not effected by the parasites no visible white dots or white spots on their fins. Could you please tell me another way of possibly treating my main tank and bringing my tang back to health. <Well, the "easiest" way (I guess "easiest" is a relative term here!) is to let the tank run fallow, without fishes, for about a month, to allow time for the parasite population to crash for lack of hosts (fish). This method is quite effective at reducing or eliminating the parasites from your tank> I have heard Nori is good but I can't find it anywhere and I have tried to feed them romaine lettuce but he doesn't even touch it. <I wouldn't waste your time with lettuce. It really has very little nutritional value and can potentially leach lots of nitrates into the water...Nori is available at most Asian markets; it's used, among other things, for sushi. Another good food for tangs in general is the macroalgae Gracilaria parvispora. Called "Ogo" in the Islands- it's probably THE food for most herbivorous tangs...You could get it from places like Indo-Pacific Sea Farms in Kona, or Mary Middlebrook's site in CA. One caveat, however- the Kole is the most "detritivorous" type of tang- versus the more herbivorous Zebrasoma species. As such, it does rasp algae and diatoms from rocks and substrate, but it will also derive a substantial portion of its diet from typical prepared fare, such as Mysis, "Formula" foods, etc. It may try the Gracilaria, but usually will take prepared foods over the macroalgae...> I feed them blood worms Flake food with Spirulina angel formula also dried pellet food but they don't seem to like it anymore. Thank you Stan N. Edmonton Ab Canada <Stan, do try the frozen foods mentioned above...they are an excellent dietary supplement! Good luck! Regards, Scott F.>

- Kole Tang Changing Colors - Hi there how are you? <I am well, thanks for asking.> I have a question or two for you. I purchased a Kole tang about a week ago at a local pet shop it looked healthy it was continually eating algae off the live rock in the tank and with further inspection I took him home. After a day or so it started to eat I tried a variety of foods including dried see weed, brine shrimp, blood worms and a frozen seaweed variety angel formula. <As an FYI - Angel Formula is actually a sponge based food for larger angels... not so much sea weed in there.> After about four days I noticed some blotches on his sides I have had many battles with marine ich before and I know this isn't it. <Could be for a variety of reasons, but I suspect your problems with Ich would be due to the fact that you didn't quarantine your fish before placing them in the system. Please read up on this here: http://www.wetwebmedia.com/quaranti.htm > These blemishes seem to be below the surface mostly seen under bright light, these blotches have spread to the head area as well they don't fall off and they don't look fuzzy like fungus. <These fish can change their colors depending on mood, time of day, etc... most likely it is under stress from the move to your system and is just feeling out of sorts. It will take a couple of weeks to a month for this fish to feel at home.> The tang is still very active but is a finicky eater it seems to be feeding off the rock and some areas of the glass where algae has started to form. I am wondering if It is Stress that is causing this any suggestions. <Yes... stress - give it time, be patient.> He is housed in a 72 gallon tank with a Lemonpeel angel, a blue devil damsel, two common clowns about an inch long, a purple Pseudochromis small as well, and a very small tomato clown. It seemed to quarrel with the blue devil damsel for a while but now it seems ok. All other fish in the tank are feeding and have a clean bill of health. If you have any suggestions please E mail me back. Thank you Stan N.   <Cheers, J -- >

Kole On The Decline? I just purchased a Kole Tang one week ago, and everything was fine except that she wouldn't eat the sea weed either from the veggie clip or when floating around the tank. The Kole Tang was eating Spirulina flakes with vigor just a few days ago. Yesterday, I noticed that she had some light blotches on her forehead and stayed completely hidden (under a large rock) and didn't come out for food at all. <Hmm, not a great sign, huh?> Her mouth was open and looked fine although I'm not sure if it was swollen. < Do confirm this with careful observation. Sometimes, Ctenochaetus tangs do occasionally suffer from "collection traumas" and other injuries to their mouths, and these visible problems should disqualify a specimen from selection for your tank. When the mouthparts of these fishes are damaged, they rarely recover. Not trying to paint a "gloom and doom" scenario here, but, based on your description, there is a possibility that the fish may be damaged in this manner..> This morning, I used a flashlight to examine her in her little cavern and it looked like maybe the white blotches might be HLLE. Since I have not seen any pictures of this on the internet I cannot diagnose properly. <Well, HLLE symptoms usually include a "pitted" appearance to the head of the fish. White blotches sound more like a fungus or a bacterial malady of some sort. It sounds to me like this fish needs to be moved to a "hospital tank" for observation and/or treatment. Do read up on the wetwebmedia.com FAQs on disease to confirm what it is you may be dealing with. With quick, decisive intervention, you may be able to save this fish (assuming that the mouth is not damaged, as discussed above).> Is it time to heat up the frying pan or can I still save my Kole? Tank specs. Tank:100GAL Sump: 40GAL (approx 17GAL full) PH: 8.3 Ammonia: 0 Nitrite: 0 Nitrate: 0 ALK:  Normal Temp: 80.5 SG: 1.024 (using the plastic Coralife Hydrometer with the arm) I do not have a grounding probe and the other fish in my tank are a blue damsel and a three stripe damsel. The tank is three months old and has approximately 30lbs of live rock in it. Thanks, Peter <Well, Peter, it sounds like your tank conditions are okay...I get the feeling that you're not dealing with HLLE here for a number of reasons, not the least of which is the very rapid onset of the symptoms. In the future, please "play it safe" and quarantine all new arrivals for a minimum of 3 weeks before releasing them into your main system. Tangs, in particular, are notorious for contracting diseases during collection, shipping, and acclimating, and quarantine gives you the opportunity to observe, "harden", and treat the fishes if necessary without incurring the added stress (for both you and the fish) of removing it from the main tank, or spreading disease to your other fishes. Take quick action with this fish...Good luck! Let us know if we can be of further assistance. Regards, Scott F>

Kole On The Decline? (Pt. 2) Thanks for your response, I examined the Kole Tang again most of the night and she seems really slow and unresponsive. Not like when she was purchased. At this point it looks like her mouth rarely closes if at all. She did come out to eat, although not with the same vigor as last week. <The fact that this fish is eating is a good sign!> Do you know of any successful treatment if this is mouth trauma? <Well, if the mouth is damaged, it's unlikely that a medication could help. However, if the fish is "gaping" due to a bacterial infection, then a medication could perhaps work. Impossible for me to diagnose here, so you'll have to really take a look at this fish and review the disease FAQs on the wetwebmedia.com to try to verify exactly what you're dealing with. Try to verify if the mouth is actually "injured", versus swollen.> Some type of antibiotic, or, medication to help her through this? <Well, I'd go for a broad-spectrum antibiotic, such as Maracyn 2. The administration of the medication should really take place in a separate aquarium. At the very least, freshwater dips may help if you're hesitant to try a medication. This is a more manageable, but possibly less effective treatment, if a "hospital" tank is not available.>   At this point I do not have a quarantine tank set up. But after this experience I will in the future. Peter <Certainly a great idea! You'll definitely reap the rewards of this practice down the line! Good luck! regards, Scott F.>

How often to feed Kole Tang? Hi.   <Hello!> I have a 55 gal. reef with 50 lbs. of live rock.  The rock has quite a bit of hair and bubble algae.  I just bought a Kole Tang.  I know he will eat he hair and may help a little with the bubble. <Maybe. Fish don't read books very often so they don't always respond to things the way we think they will/should but alas...time will tell. I hope that you're right> My question is, how often should I supplement his diet with Formula Two if I expect him to successfully graze?   <I suggest that you consider growing some Gracilaria in the tank (if possible) and feed this guy with the Formula 2 a couple to three times a week. You might consider adding Selcon or any vitamin supplement that contains a stabilized form of vitamin-C to his rations. You can also feed Nori from the Asian section of your supermarket. Try to get the dried kind instead of baked. If he really does chow down on the bubble and hair algae I would feed even less until the nuisance stuff is gone> I don't want him to get lazy.  My guess is every other day, but I need a "gut check." <You're on the right track!> Note - I also have two clowns and a watchman goby that I feed once a day with a variety of frozen foods (Formula B, prawns, clams squid.).  I expect the Kole will eat that as well. <Guaranteed! They need protein as well> Thank you, Rob Fox <No problem! David Dowless>

Disease ID on Kole Tang <Cheers, Richard> Hello Bob, I have been having some type of disease problem with every Kole tang that I have brought into my store. I have attached some pics of an affected fish in hopes that you can help me identify the disease. It usually starts as a brownish or pale colored patch on their side and eventually spreads around the head area. So far the disease has never spread to any other fish in the tanks. Your help is greatly appreciated. Thanks, Richard <the species specific nature of the pathogen is not a surprise... we have seen this with butterflies and dwarf angels just the same. It is not exactly clear from the images what the primary cause is, but I see a hint and suspect the fishes die with full blown hemorrhagic septicemia (you see bloody ruptures under the skin or even open lesions?). If not, then we make look towards complications from Brooklynella which is all to common in Hawaiian imports. I assume that this is a central system. My advice would be to stop putting tanks in this system for 2-4 weeks minimum and ozonate it (or ozonate it better). At the same time, import  just a few more to place into an off-system QT tank to see if the problem is the shipper or a bug in your tank/system. Treat the new import in QT with daily formalin (use Aquarium Products Formalin or "Quick Cure [malachite with formalin]) daily for 5 to 7 days consecutively. A small daily water change for that first week from the bottom would be nice too. Stable temp in qt (2 heaters, 78-80F... no higher). And observation for a total of 2-4 weeks. This will indicate to us where it is coming from and how we can treat it. I strongly recommend properly dosed ozone in commercial systems... there are so many benefits beyond disease control. And UV is almost useless on central systems (too high flow, too high organics and particulates, etc... just useless for most). Ozone with effluent passed over carbon is fool proof. A RedOx controller running it will be a tremendous investment in the quality and health of your fishes. Best regards, Anthony>

Kole Tang I recently purchased a Kole Tang (1 week ago), and it's swimming up and down repeatedly in the same area. It appears to be "afraid" to eat, and will come out rarely with the exception of the above described swimming pattern.  <<I get the sense that you did not quarantine this fish. One of the best reasons to do this is to help the fish get used to the idea of captive living and your feeding schedule, away from other fish.>> Is there anything that I can do for the fish? What is causing this behavior? <<Stress, most likely although most tangs are constant swimmers... they really like to cover a lot of ground. If it appears that the fish is doing this in response to its reflection in the glass [which isn't uncommon] then you might try leaving the tank lights off for a couple of days to help the tang get used to that other tang that keeps swimming back and forth with it.>> Will it die?  <<Uhh... that is kind of open-ended... if it doesn't eat, yes.>> Please Help!! <<Be patient, consider a quarantine tank for this fish to have some quiet time to itself.>> Sonya <<Cheers, J -- >>

Kole Tang Eating habits and LR Cycling Hello there, I have a funny question...being a guy (last time I checked) I like to laugh at things gaseous, smelly and loud...so in a related topic, I noticed that my Kole Tang eats my other fishes' poop (yellow tang, 4 damsels - all provide the Kole with freebies). Now, one of my dogs has been doing this for years, with no obvious health consequences other than bad teeth and horrendous dog breath, but I was wondering if this is unhealthy for a fish. <<Interesting question... for your dog, this is only a throw-back to the wolf gene all dogs carry. Wolves often bring food home to the den only to offer it back to the pups in a semi-digested form. Fish on the other hand... who knows. This is an observed and documented behavior in several species of fish, and is really quite normal.>>  Is this behavior normal for a Kole Tang.  <<Not sure about the Kole tank in particular, but I'm not surprised.>>  I alternate feedings of Formula 2 and Nori everyday with Mysis shrimp (when I feed the anemones and polyps), and I see it grazing on the algae covered rocks and glass. It constantly has a full stomach (of what... I hasten to guess).  <<let's not go there... oops, too late.>>  My other question concerns my LR. I put in my "pre-cured rock" after ammonia readings were <0.1 and three weeks of re-curing in a 40 and 20 gallon bin with skimmer and two power heads. It went into my established (for about 10 years) 55 gallon with fish. I worried that weekend, and feared that I put it in too quickly...I did not test for nitrites, foolishly. Today, in the late afternoon, I tested the ammonia, which came up as zero, or close to it from what I can tell off the color chart. It hasn't been a month, but is there a chance that the ammonia will spike up again or re-cycle?  <<I don't think so, you are likely fine.>>  I have an Aqua-C Urchin in a ten gallon sump, built-in overflow, bio-balls, Chemi-pure, and two sweeping power heads in the tank. Do you think that the tank was capable of taking care of the stress from adding 45lbs of rock at one time since it had already been through its cycling, many moons ago? <<Well, that and you did pre-cure the rock...>>  All inhabitants are doing fine, with no casualties since January, except for my cinnamon clown who thought it was superman and leaped out last week...probably got disgusted at the sight of the Kole eating poop. <<perhaps.>> Thanks, Randy M. Yniguez, MA <<Cheers, J -- >> 

Surgeonfishes: Tangs for  Marine Aquariums Diversity, Selection & Care New eBook on Amazon: Available here New Print Book on Create Space: Available here by Robert (Bob) Fenner