This is the one commonly recommended. Presoak it for a few minutes. Repashy super gold is also good. Occasionally throw in some boiled peas and some frozen bloodworms. Honestly, don’t over think it. They’re basically little garbage disposals. Most higher quality pellets should have just about everything they need nutritionally… bloodworms are straight protein for faster growth, and the peas keep them ‘regular’ so they don’t bloat up.