nice fish, havnt seen many with humps like that.
what were you feeding it?
ive got a 5" male right now, he's growing like a weed. i'm trying a higher protien diet (krill, bio-gold, meal worms, small fish) this time and it seems to be working for me, no bloat in any of the 9 i started off with, ive had them since 1" (gave away some and he killed the others). the spirulina diet didnt work for me and they didnt grow at all last time i tried growing these guys out.
did you add salt to the water?