The Ocean nutrition Feeding frenzy grid Feeding clip is the perfect tool for Feeding marine butterfly fish and other picky or delicate Feeding marine tropical duplicates natural grazing Feeding pattern in tropical fish firmly grips or holds a defrosted Cube of gel based frozen fish food butterfly fish others will pick through openings in screened gripping area in their natural coral reef environment marine butterfly fish angels tangs and many others feed by picking throughout the day on surfaces of coral heads and live rocks ocean nutrition grid Feeding clip helps to duplicate this natural Feeding behavior by holding food intact and prolonging the Feeding process so that fish are not forced to eat their entire day s food in a five minute rush it also allows your fish to feed in this natural picking manner rather than eating food floating in the water Column.