Red marine algae is a nutritious and tender seaweed supplement that your herbivorous marine and freshwater fish will devour this dried seaweed is ideal for feeding tangs surgeonfish moorish idols parrotfish angelfish wrasses damsels and some large butterfly fish red marine algae is made form 100 natural dried seaweeds marine macroalgae with garlic extract for increased immunity and palatability rich in vitamin c and 100 digestible an entirely botanic and very nutritious supplement