Depends on the tank. Every day I defrost some brine shrimp, mysis shrimp and blood worm. I then feed some flake to the community tank and some marine flake to the marine (four or five flakes here). i add a few cat fish pellets to the community and then drip a few brine shrimp into each tank and watch to see if it gets eaten. It does, all my fish love it. The marines will take one or two mysis shrimp each (the marines dont get the bloodworm), the puffers I need to watch as they will eat and eat, so only a couple for them. The remainder goes in the community tank and is gone in a min or two at the most.
Jon