I get several blocks of frozen food, a good slug of marine snow and what ever other foods. Have about, I add these t a blender cup and place frozen shrimp, krill, octopus, squid, crab and muscle in to the blender cup, I turn it on and blend all the big chunks out, I add salt water from the tank to make it wet. I pour this mixture into ice cube trays and leave them to freeze, I pop the cubes out and put them into a ziplock baggy. Cheap food blocks and loads of them, my fish love them ! ! ! ! And so do my corals.