Any thoughts to using a powerhead or circulation fan to create a strong water current for fish and maybe make him work harder to swim for growth and possible more appetite, almost like it's natural enviroment. Yes, No! I have been think about experimenting with this process to see if it help any.
Plus I think its an individual fish issues IMO, becasue I had two GATF purchased in May in a 55 gallon, both were power fed minnows all the time, kept the tank full of minnows. One grew from 4'' to 7'' in about 3 1/2 months it seemed, unfortuanly I moved him in with a 9in Tig, so he would not killed the slower growing GAFT, but the Tig disposed of him one night I left the light off on the aquarium, this was in August. The one I still have is only maybe 6'' now in a 75 gallon by himself, but it has been all of 8months. I am giving him until the end of the summer to make it to the big tank, if he is not at least 9-10 inches, I am giving up!