PP- I was lucky- Hoover, my orange Congo, ate market shrimp right from the start. I think the key is to get your LSF to not feed live fish if possible before you pick up your fish. Place I got mine avoids using live food (other than copepods, ghost shrimp, and worms for some fish). Don't even sell feeder goldfish. If you do want to feed live fish, mollies are good breeders and very health if you keep them in brackish water. I feed a few 1/4- 1/2 in. baby mollies about once a week. Gives Hoover something to do- he loves chasing them. Eventually he give up, buries himself and waits for them to swim by. One of the reason Congo puffers and other fish from the Congo are harder to find is the current prices. One of my friend owns a LFS and told me he can't bring in $75 wholesale fish that may not sell. I did ask his partner today if any Congos coming in but there were none on any of their distributors' lists. When Congos are available I am going to see if they will get some and do mail orders for them.