Have any of you used the silvercup brand fish food? Its 45% protein and about five to ten dollars cheaper than the purina. I started buying it from the bass farm last year and they swear by it. However, the only place I can get it around me is at the tru value hardware in Gainesville Texas. After saying this though the most fun fish food for me has been the purina largemouth bass just because of its huge size. The bass and hsb really blow up on it when they are feeding. I have found a cheap catfish feed if anyone is interested for 13 dollars a bag that is 32% protein that is a commercial fish food.