Super nutritious, natural seaweeds, ideal for Tangs and Surgeonfish, Angelfish, Cichlids, Goldfish and other herbivorous freshwater fishes. The Red (Palmaria palmata), Purple (Porphyra umbilicalis) and the Green Seaweed (Porphyra yezoensis) come in tear-able sheets while the Seaweed Flakes consist of chopped, mixed seaweed in a tub. Use Seaveggies Clip to hold the seaweed sheets.