Well i think my food is to big, because my fancy clown nips it spits out nips it, spits it out then finally eats it. when i crush it up for him he goes crazy. But my other clown just taste it and spits it out. hes a black and white one. Maybe there is a smaller food or a different one i could try? im starting to worry but maybe he eats later, they usally fall on a rock and when i come back some of them are gone. Maybe the air flow pushes it off into the filter. But im just curious.