well sure if anything its like u spoiled them kinda ya know? with any fish i feel that as soon as u give them something like...different and really tasty thats all they ever want...
I dont think they are cobalts. I got my cobalt at 3 inches and hes almost 5 and hes still got the same color. Remember to do your daily water changes. There's nothing more depressing then a stunted discus. Good luck!
You can see the A-hole apisto in the background, just by the look on his face you can tell he's getting ready to do something he shouldn't (but we love him anyway )