... nutrience,competitive price! best food for fish,fish love it! dried purple seaweed/Tang Fish FoodSaltwater Correct Dried Purple Seaweed Saltwater Correct ... .Most fish if not all in your aquarium will eat seaweed like butterfly fish, clown fish, engineering gobies, damsels, ... all tangs and even freshwater fish.Saltwater Correct dried purple seaweed is plain and simple, just whole wild saltwater plant, ...