NUAQUA-Frozen BLOODWORMS- Your discus, loaches, bettas, and other community freshwater fish will thrive when fed San Francisco Bay Brand Frozen Bloodworms. They are an all-natural, protein-rich food that fish find irresistible. Additionally, they provide essential nutrients that help maintain high energy levels, health, and wellness. Fish digest them easily, benefitting water quality, allowing you to enjoy your aquarium.