I feed my fish 3 times per day, but I breed mine so good nutrition is important to me. He is correct you do not want to over feed. I have no water quality issues with feeding 3 time per day. You want to feed 3-4 peices per fish 2 times per day. Get some pepermint shrimp or some other scavengers that will eat any food that is not consumed by your fish. They should have all the food gone in about 2 minutes. There are many foods available for clownfish. The clownfish will not pick at the algae on the rocks. You can feed them brine shrimp, mysid shrimp, blood worms, table shrimp, cyclop-eeze, copepods, calanus plankton, ocean plankton, krill, squid, scalops, crab, flake foods(multiflake, and spurilina), and there are many good mixed foods with a good varitey for clowns. Pick 3-5 items on this list and use them once per week.