King British Catfish Pellet Food is a sinking complete food for all types of Catfish and other algae, eaters. It is high in protein at 50% and has a high oil content of 15%, as required by most catfish. The food is in the form of 1-2 mm dark green pellets. This complete diet is highly digestible and has a low waste formula. It also contains an Immune Health Booster.