1、ENCOURAGE PICKY EATERS TO EAT MORE: If one fish feeding ring is filled with food, the fish will rush straight there, while the second ring opens to provide specialty foods for those picky eaters. 2、PREVENTION OF FISH BULLYING: Fill a fish tank ring feeder for more aggressive fish to rush over and eat. Once they are occupied, add floating fish food to a second feeding area for the more timid fish. 3、SAFE MATERIAL: Fish tank floating food circle is made of high quality PVC, non toxic and tasteless, no pollution to water. It can help the fish to develop the habit of eating in a fixed position. 4、KEEP CLEANING: Aquarium floating feeding ring keeps food in a specific area and it prevents food from floating to unwanted areas so more food can be eaten. Reduce waste and maintain water quality. 5、GOOD HELPER: Fish floating food feeder suction cup suspension, can float with the water level, help fish to develop a fixed position to feed the habit, reduce the waste of fish food. Item Type: Fish Feeding Ring Material: PVC 1 x Square Fish Feeder Ring 1 x Round Fish Feeder Ring