The only problem is that the fish poop will not get macerated or chopped up by the pump at any point here. So maybe that is not the best idea.... I am not sure really.
Red wigglers to the rescue.... They'll take care of it.
Give 'em some banana peels once and awhile too...
"Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - President Ronald Reagan