Fish food tabs are specialized, compact, and high-protein (approx. 35–42%) tablets designed for aquarium fish, often used for feeding bottom-dwellers or stuck to the glass for viewing, with common brands including Sera O-Nip, Tetra FunTips, and JBL ProNovo. They sink quickly to allow targeted feeding and break down slowly, providing a nutritious mix of algae, crustaceans, and vitamins for fish, shrimp, and crustaceans.