Picked up around a 4 inch lima the other day and I havnt seen him eat at all, I feed mostly sinking shrimp pellets and frozen bloodworms, the guy at the pet store said they eat anything they can get their mouth around, all he does is chill on a log and that's what he did for about 3 months at the store until I bought him, I can get ghost shrimp this weekend so maybe that would be better?