what are the signs to look for? i have a 30g reef which has been set up for about a year and a half...before i was in teh know i bought a yellow tang...this is like a year ago....and i have been waiting for a tank to put him into...well now i have the tank to put him in...but he has been doing great for a year now...he eats great is active, never had ich or anything....he is prolly 3 inches from nose to tail...i will get him out of there asap though! i don't want to be shunned by the board....haha...but i am glad that i am not the only one with a tang in a 30g or smaller...haha