You dont have to cut out the food, you are probably over feeding. fish have very small stomachs but very big appetites. its like a little kid with cake, or if you feed a dog a bowl of food then sit a steak infront of him. Problem with me saying this is everyone thinks differently with food and there really if no right answer. if you still have food left use it just watch how much you use, also think of switching to NLS or something with a little less filler in it.