Help! Yellow Tang acting strange

cburke401

New member
Hello all, I am fairly new to reef aquariums and am having a problem. I started my bio cube 29 about 8 months ago and have had a fairly normal experience with my aquarium so far. Anyways I have a very juvenile yellow tang(no longer than 3 or 4 inches, an average size coral beauty, an average size six line wrasse, 2 cleaner shrimp, many snails, a zoanthid frag, a small hammer coral, a giant Kenya tree, a large goniopora, live rock, and live sand. I am listing everything in the tank because I don't know what would have caused my yellow tang to act so stressed and nothing is new except my goniopora which has been there for about five days now with no problems. My yellow tang has been with me for about 3 months and has had no other problems. I do have mods in my tank such as a UV sterilizer, protein skimmer, led stunner strips, and a power head. Now to get back to my tang, he is usually the first to eat and he eats ALOT, so when I went to feed the fish today he wasn't interested at all and that was when i knew something was wrong. So as i observed him, I saw this, he was showing signs of stress, flailing his fins while barely swimming in place, taking cover underneath an overhang of live rock, darting from place to place very quickly and then stopping all of the sudden, then darting again in a small circle, staying under the dark overhang. My tang is a very social fish and he has not been socializing with the other fish. One thing that sold me on the fact that he is not well is that he swam to the shrimp and is currently allowing them to clean him... I know this is a symbiotic relationship however Gilbert(my yellow tang) has never allowed them to touch him for long if he did at all! The only difference in appearance I see is that he has very few, small black dots on his nose and between his eyes and that his skin is slightly orange/brown along the end of his spine. Black Ich?:worried:
 
For one thing, a tang will go nuts in a tank that's too small. YTs are very hardy and may live for quite a while in your 28 gal tank; but problems are inevitable, long-term. (IMO & IME). Black Ich is a worm and can usually be cured with Prazi-Pro; a med that can be used in the DT. Its the only reef-safe med I can think of. The symptoms sound more like ich, or other similar parasite. Are you using a QT? When was the last fish introduced? When he darts around, is he scratching on LR, substrate, etc?
 
I'd say your tank is way too small for a yellow tang. 3 months is about how long it would take for a fish that size to go batty in 30 gallons of water. My PBT displayed those same behavioral cues when he was trapped in my 75. He's much better now that he's moved to the 150. If you think it's black ich, the treating with Prazi as MrT has said is your best bet, but I'd think about either getting a bigger tang or moving your tang to a friend who can provide him with the appropriate amount of swimming space.
 
Back
Top