I feed once a day, I was doing about half a cube of san francisco bay brine shrimp. But I got some LRS last week and been trying that. I break off a few chunks of the LRS and use those. I put some Ocean Nutrition formula one flakes in some days also. I have 6 fish in my 40 breeder, Melanurus wrasse, Clownfish, Royal Gramma, Flame Hawk, Midas Bleeny, and a Banggai Cardinal. The only picky eater is the Banggai he spits flakes out, and he wont eat the LRS food unless its really small pieces, about the only thing he will eat is brine shrimp. The other fish eat like pigs, and whenever I feed the LRS my wrasse goes after the bigger pieces and his stomach gets huge! I think hes gonna pop lol.