I still don't know how you are getting away without directly feeding the mag. What am I missing ... do you routinely dump a cloud of food in the tank and it's capturing lots of small pieces of food? My fish are all tank bred, they like small pelleted food and aren't very interested in frozen, although they will eat table shrimp if I give them some. I feed them at most every other day more as a distraction from the anemone being fed. I only keep SPS which doesn't require "broadcast feeding". I can only guess you are broadcast feeding your fish and LPS which in turn is nourishing your H. mag???