The TIHOOD 4PCS Aquarium Divider Tray Plastic Grid Aquarium Egg Crate Light Diffuser is a great way to keep your fish tank organized. Made of food-grade plastic material, this diffuser is durable and easy to use. The grid divider can effectively separate fish and prevent them from biting each other, while the plastic frame can be cut and spliced together with ease. The sucker clip can be fixed anywhere in the aquarium, making it easy to use and move around.