Frozen Tubifex Worms provide a high-protein, single-ingredient diet ideal for omnivorous and carnivorous freshwater fish. This all-natural food features an appealing flavor that even the most finicky fish will enjoy. Tubifex is bacteria-free and fortified with multi-vitamins to support optimal health and vitality. Recommended for a variety of freshwater fish species and some amphibians, this nutritious option promotes strong growth and overall well-being.