Personally I don't care too much for pellets. I had bought some myself recently and my inhabitants wont touch it. The first time I fed it to them they went for it and would fight each other but they all just spit them out and the fire shrimp wound up eating them all himself (He is a total pig and would eat anything!). I have heard many times since buying the pellets that they contain phosphates as preservatives and can cause unnecessary algae in your tank. I myself use frozen foods such as mysis, brine, cyclops, and formula 1 or 2. However, my watchmen goby does not seem to care for this formula 1. I do switch up what I feed them everyday to give them a good beneficial diet and to keep them from eating just one thing so they wont get picky!