The 3-day Taiyo Pluss Discovery special holiday weekend fish food contains nutritious food pellets that are released slowly as the sphere dissolves. It is made with superior nutritional ingredients to feed all tropical, coldwater and marine aquarium fish while you're away for up to three days, making this automatic feeder ideal for long weekends and holidays. It includes natural ingredients to meet nutritional requirements of all aquarium fish. One spehere feeds 15-20 average-sized fish in a 40-litre aquarium for up to three days. The 3-day Taiyo Pluss Discovery special holiday weekend fish food will only dissolve in aquariums where water is properly circulated. Use these feeders exclusively in filtered and aerated aquariums. Taiyo Pluss Discovery fish food is formulated for a variety of popular fish such as cichlids, goldfish, tetra, betta, angelfish and more with high quality ingredients fish love such as algae, shrimp, worms and more. Keep your fish healthy, happy and colorful with food that contains optimal levels of nutrients as well as helps produce less waste, toxins and stress. For delayed release try Taiyo Pluss Discovery special holiday vacation feeders.