I have a clown knifefish that is a bottomless pit. Currently we are having to go to the pet store to get feeders just about everyday. I have gotten him to the stage that he will eat out of my hand but it must be alive and moving for him to have genuine interest. We tried feeding him the frozen krill, at first he chews it up but then just spits it back out. Does anyone have any suggestions as far as keeping a constant living food supply or anything maybe I am missing. This fish is the center of my aquarium and he is my pride...I would just like to know the best way of keeping a viable source of food for my beloved swimming stomach! (ps we have also tried to keep an aquarium of feeders but the water turns because of the amount we have to keep)