San Francisco Bay Brand Food Tablets Nibble Bits is a nutritious, high-protein food with an appealing flavor your fish will find irresistible. It is the perfect choice for small to medium-sized freshwater fish, invertebrates, and amphibians. This food is in the form of a tablet allowing it to be stuck to the inside glass of your aquarium, which creates a feeding frenzy that is fun to watch. You can also use it as sinking food for bottom-feeding fish and invertebrates. Food Tablets Nibble Bits are all-natural and easy for fish to digest, producing less waste and your aquarium stays cleaner. Unlike flakes or pellets, it can take a while before aquatic pets eat the tablets completely, dissolve slowly, make it easy for fish and invertebrates to nibble, and do not cloud the water.