The San Francisco Bay Brand Frozen Freshwater Multi-Pack is a 3.5 oz package that contains 24 individual cubes that contain ingredients such as brine shrimp, bloodworms, spirulina, plankton and krill. What is special about this food source is that as a multi-pack, it contains a variety of San Francisco Bay Brand freshwater foods Freshwater Frenzy, Emerald Entree, Bloodworms and Spirulina Blood Shrimp, that provide essential vitamins, nutrients and proteins. Additionally, the mixture allows fish feeding at all tropic levels, from surface-feeding livebearers, mid-level tetras to bottom-dwelling cory cats, to get everything they need it their diet, making it the perfect food source for freshwater community aquariums containing fish such as algae eaters, angels, discus, goldfish, tetras, barbs, cichlids, gouramis, platys, mollies, loaches, eels, catfish, african cichlids, sharks and many others. The all natural food contains no fillers and helps to enhance growth and provide fish with a boost of energy.