Originally Posted by BrandonCena
my blue tang just to give my advise lives in a 29 gal wich he has lived in there for almost a year now and he seems really happy and i had no problems with him
This is the type of advice that responsible hobbyists try to refute. In truth, there is no way to guage "happiness" in a fish. Health is easier to measure but sometimes, while there may not be visible symptoms, there is an underlying problem brewing, and I'm sure this is the case with your tang. Prolonged stress from confinement in a tank that is horribly too small, causes a constant release of stress hormones into the bloodstream. Over time this will weaken immune function, and make the fish more susceptible to disease. It can also stunt growth, which is why you'll never see a healthy full grown hepatus tang in a small tank. I would hope that hobbyists who read posts like yours recognize that is not good hubandry, and disregard your "success" as simply a problem waiting to happen.