A 16" fish in a 30" long tank with a 12" width and a 12" hight. Let's see, if you can't turn around you generally don't do much except sit. Boom!! Found the problem.So guys now he has been living in that 20 gallon for quite a while now..he eats fine except he now doesnt swim on the top and frequently sits in the bottom. All okay na guys??
+1, I don't see how you deem this to be ok..ok, I am going to have to bow out on this one, prat, please rehome the fish. LFS will put him in a better tank than you have atm. he aint going to live in that long.