I have about an 8in pike cichlid who is quite aggressive which fine because the only other fish in the tank w him is an equally aggressive oscar. I am having a problem because the pike will only eat feeder fish (about 5 in a matter of seconds). I am concerned because i know feeder fish can spread disease and aren't all that nutricious and can get a little costly. The oscar will eat pellets and such but the pike isnt the least bit interested even after not having feeders for a few days. Anybody have any ideas?