I recently bought an Ornate Polypterus (could'nt have been more than 6-7 days ago) and he looks healthy but he isn't eating much. I put 3 feeder fish in the tank (comet goldfish if memory serves) and although I never saw him eat any. I woke up and found one gone for three nights. I found no corpses/skeletons and the only other fish in the tank are a bristle nosed pleco and a pipe fish, which I highly doubt played any part in the dissapearance. Anyways, I've heard that feeder fish tend to have low nutritional value but have harmful oils and may carry diseases into the tank. So I've been trying to get my bichir to eat pellets and chopped raw shrimp. However he just completely ignores them, what should I do?