feed kelp powder is natural seaweed feed Product Name: Natural feed seaweed powderNatural feed seaweed powderis produced from sea ... contains rich mineral elements such as iodine, potassium, calcium, manganese, ferrum and zinc, and also contains rich vitamins, algae ... contains rich mineral elements such as iodine, potassium, calcium, manganese, ferrum and zinc, and also contains rich vitamins, algae ...