I have a tsn thats about 6 months old about 12 inches and latley he has not been eating like crazy like he normally does. he just kinda eats a few frozen krills when they are dropped in front of him. but doesn't eat all that much. has anyone had this problem. and what should i try to get him back to eating like crazy so he will start growing again he hasen't eating that much in 2 months and hasn't grown much.