I got a Kelberi from Rapps looks great but will not eat much and is not very aggressive. I have 4 Orinos, 1 Tem, 1 Mono all about 5-7" Kelberi is 7". I have had it almost 3 weeks and still will not eat anything but worms blood and tubifex. I feed Live feeders comet and rosey reds, frozen krill, dried krill, market shrimp, hikari food stix others eat everything Kelberi eats worm and very daintily at that (no killer instinct). Anyone have any suggestions?