Hikari is the first producer in the world to have succeeded in the development of a pig with nori seaweed whose herbivorous fish love. Hikari Seaweed Extreme contains no less than 67% of Nori algae. No more nori leaves in the aquarium that still pollute water. Seaweed Extreme is the complementary food ideal for most herbivorous fish and also for omnivores such as clowns, pomacterridés and pepillons. - Daily food for herbivorous seawater fish. - contains at least 67% nori algae. - The alternative to nori sheets.