If your tank is well established, with a decent fish load, I wouldnt be concerned about feeding it. If thats not the case though (or if you filter heavily) you may want to throw in some additional food on a regular basis (multiple small feedings is best- most people dont keep up with that though). Marine snow is probably the best product I can think of to use, though if you ran some mysis shrimp/seafood through a food processor, that would probably work just as well, if not better.