I have a 3 '' altuvie and everything has been great he eats like a pro,i give him a varied diet of shrimp,scallops and for the first time last nite catfish.I do 25% water changes every 2-3 days the problem is since last nite he has been breathing hard and kinda twitching I haven't noticed any ich spots on him and I'm pretty sure there isn't an amomia problem in my tank with all the water changes I do,oh 1 other thing I have noticed that he used to take chunks of meat now I have to cut them real small or I find them in the back of the tank when I do my next water change could this mean something,really could use your help here guys,nick