if i were u. i will feed it w/ guppies or feeders., but at that size, i dont he can hunt them yet, so make sure that ur feeders/gupies at drozy or freshly died before ofering it to ur CK.. and make sure the lights out, sometimes lights freaks the fish out. and try to move out some of ur stones, caves etc. in order for you to feed him easily and u can observe him.. god luk bro