I used to strain my cubes before putting them in the tank until I saw some amazing SPS tanks that the owners would just dump it all in. ?I asked about it and they said that it all helped to feed other parts of the tank. ?I don't specifically feed my coral each day, but the rest of the frozen should leave some stuff in the water for it to feed on. ?I also read that pellet food has more nutrients than a cube! ?They say that most people worry too much about the cubes, but don't worry so much about the nutrient rich pellets.