ok so ive been feeding my fish alot of the frozen emrald entre, i know i spelled that wrong but..... but anyway i know this can't be good for the tank , they attack it a little peices go everywear, what else can i feed them, every pellet or flake food they won't touch, my pacu didn't eat for a week when i first got him till i tried the frozen emrald, ive tried frozen blood worms, and such and still no luck. i have 2 pacus i about 5 in and one about 1.5 in, 2 pictus cats about 3 in, i gorumie about 4 in , 1 tinfoil about 5 in and a pleco about 6 in. i also have a seprate tank with 3 piranhas in it, they are picky as well they will eat the emrald but nothing else any ideas?