BP, the largemouth food is called 'Aquamax Largemouth'. It is aobut 18mm in size and my bass have taken to it pretty well. Although not as well as the Hybrid Striped Bass. They are beginning to destroy it. Just contact a local Purina dealer and he should be able to special order you some if he tries hard enough. Of course, the fish feeding will begin to slow soon, so you may want to wait til spring.