Bigolhorns, from your post, it looks as if you are feeding your humu a nice, varied diet. I really wouldn't worry if he wont eat any flake. I have never tried flake, I feed my humu, clam, squid, shrimp, silversides, krill, brine, and mysis. He is healthy as an ox, an unbelievaby colorful. You can soak your frozen foods in zoe as a vitamin supplement if you think he needs it. Like I said though, I really wouldn't loose any sleep over him not eating flake. Bo