I have a LIma that is about 5." He has had a pretty slow growth rate because he does not eat a whole lot. He only eats the frozen food I put in the tank which is bloodworms, krill, and silversides. I like to try and feed New Life Spectrum Pellets and Massivore Pellets to my fish most of the time. The Lima is just not interested in the pellets. Since this species becomes more "outgoing" when they get bigger, is it likely he will eventually eat pellets? I have read that this is not really a scavenging catfish, so is it safe to assume that he is not scavenging for pellets after lights out?