he is about 4". he is very active, but just doesn't want to eat what im giving him. again tho i havn't tried to feed him very much at all. i was thinking about getting some live ghost shrimp to see if he would eat those but the LFS was out. i got after i got fish food so i have no other food besides bloodworms and tropical fish flakes.
Realize also that most are nocturnal feeders to start out. After they're comfortable you might be able to adjust feeding time but for now try feeding after lights out. As stated, give a day or two on the diet change from the guppies to whatever. I made my change early so now they take pellets, frozen, freezedried & of course live. "T"