Welsi Gran Sinking Granules - 65 g Tropical Welsi Gran Sinking Granules are a specialized multi-ingredient sinking granule feed designed specifically for bottom feeding omnivorous and carnivorous fish like catfish, loaches, and other algae eaters. Welsi Gran Sinking Granules are created by Tropical from a balanced blend of vegetable and animal materials. This balanced blend of ingredients satisfies all of your bottom feeders' nutritional needs with everyday feeding, aiding in their growth. Tropical Welsi Gran Sinking Granules are also infused with vitamins, including vitamin C content meant to stimulate fish immune systems and stave off illness.