so ive read a little about what you should and shouldnt feed pirahnas.ive had some that all i fed them was deer heart and liver.when i had discus i made my own food for them.the recipe had liver,spinich,bananas.some vitamins,betta carotine,and garlic.the garlike was to fightintestinal worms,the spinach was for some plant matter,betta carotine helped with the red color.my question is can i do this with pirahnas?any one know where i can find a recipe?ive read also not to feed them minnows or lake fish.is this only because of worrying about disease?how about if i fillet them out and freeze them or feed them freshly filled?