When I did my 2 ponds, I remember buying Purina starter 400 in a green bag. It looked like BB's in size and it floated. I am helping a friend with his new pond. The only purina 400 I see is a grower not a starter. The food I used floated and fatheads and BG loved it! Am I just remembering this wrong? Any suggestions for a starter food that floats and you can throw that can be used for a couple of months until moving up in pellet size? Starter feed by purina all sink and I want something that floats.