Nutrafin Max Sinking Pellets with Krill and Shrimp Meal is a nutritious, highly palatable fish food for bottom feeders such as loaches, wide mouth catfish (Synodontis, Pimelodus & Pseudopimelodus), plecostomus (Hypacistrus, aka Zebra plecos), Hypostomus, Glyptoperichathys, medium to large cichlids, and many other species. Naturally coloured by its ingredients, the fish food contains 15% krill and 20% shrimp, as well as multi-vitamins and Advanced Yeast Extract, which helps improve digestion and allows optimal nutrient absorption.