Farmyard Accessories -Fish Food Feeding Ring Aquarium Feeding Circle Ring Fish Tank Fish Feeder Square Black Highlights Generic Brand Fish Food Feeding Ring Aquarium Feeding Circle Ring Fish Tank Fish Feeder Square Black Description: [ High quality and environmental protection]-The products are environmentally friendly and have no effect on the quality of water and fish. This feed ring comes with a suction cup and a plastic floating ring to hold floating food and help prevent food from entering the filter. [Fixed Point Feeding] - Fix the feeding area, increase the feeding rate, help fish develop a habit of eating at a fixed position. [Reduce Pollution]- Effectively enclose feed, reduce feed waste and water pollution, and keep the water tank clean and full. [Rotating Device] - The feeding circle can change the position of hovering with the change of water level. It is adjustable, simple and practical. Improves feeding efficiency and promotes better water quality by reducing the amount of uneaten food that breaks down in the gravel and filter system. Specification: Material: PVC Color: Black, Blue Shape: Square, Round Size Chart: Size: Round: Outer diameter: 7.5cm/2.95inch Inner diameter: 5.5cm/2.16inch Square: Outer diameter: 10cm/3.93inch Inner diameter : 8cm/3.14inch Package Include: 1 Piece Aquarium Feeding Circle