its a pain to feed. it does not sink.
I put it in a syringe, add water - compress it, then cover the nozzle and pull the pump down and all the air from inside the pellets come out.
then i inject it into the tank. the pellets are very small.
60% protein I think, but im not so sure why you are fixated on protein :lol: There are other food groups out there that are vital as well.
PM casserole, not sure if he has any left.