1. Keep the aquarium clean: The fish food rings confine the food to a specific area, preventing it from drifting into unwanted places like the filter, which can consume more food. This makes it easier to clean up leftover food, reduces waste, and maintains water quality, enhancing the enjoyment of feeding. 2. Prevents fish from being bullies: Aggressive fish cannot monopolize the rings, ensuring all fish have a fair chance to eat peacefully. Fill a square fish feeder and let the more dominant fish feed there. Once they are occupied, add floating fish food to a second feeding spot for the timid fish. 3. Practical DesignFeatures a suction cup suspension, rotating mechanism, and floating design. When the water level changes, the rotating rod adjusts accordingly, and the floating rubber base keeps the fish feeding ring always above the water. 4. Safe and quality material: The fish food ring is made of nontoxic, quality PVC, ensuring the health of your fish. These floating rings help fish establish a consistent feeding routine in a fixed location.