Dymax Tropical Essential - Sinking Granules with High Protein Nutrition. Ideal for guppy, tetra, molly, and other small tropical fish, Tropical Essential contains prebiotic ingredients that provide a wholesome diet. This formula boosts the immune system, promoting fish health and disease resistance. Highlights: Creates minimal water pollution with slow-sinking, non-clouding granules. Enhances body color with added spirulina algae and astaxanthin. Supports immune system with top-quality ingredients. Available in four convenient sizes: 1.59oz (45g)4.23oz (120g)14.81oz (420g)0.352oz (10g) - 24 Bottles