Julian Sprung's SeaVeggies. Green Seaweed (Porphyra yezoensis). Super nutritious Natural Green Seaweed sheets. Ideal for marine herbivores such as Tangs and Surgeonfish, Moorish Idols, Parrotfish, Angelfish, large Butterflyfish, and herbivorous freshwater fishes, such as Cichlids and Goldfish. Available in foil packaging 30g (1 oz).