I've had my 55 gal marine tank setup for about two mos. now. i had a snowflake eel, and a volitan lion fish, both were and still are doing very well. i purchased a 2 1/2" niger trigger for my third and final fish, and it seemed ok for a while 'til....he got stuck in my smaller castle and i didn't find him for a couple of days. i eventually got him out, and he is still alive but for the past few days he is constantly in hiding; again. he appears to be healthy yet he never comes out to eat. i've tried krill, silversides, clam, nothing seems to work. is he just stressed, should i put him in a qt tank? is there any treatment i can give him? Qt tank may stress him more i'd think. i also thought they were supposed to be a blueish color, but this one has been black since the day i bought it. any suggestions for my trigger?