Separate tray for breeding fish in an aquarium. This Aqua Della tray for breeding fish is very easy to use. The tray can be placed inside the aquarium and the eggs are placed in it. The tray is hung inside the aquarium, ensuring that fresh water flows through it constantly. The grate keeps larger fish out, which prevents small fish from being eaten. Features:For fish breedingEasy to useEasy to adjustProtects small fish from being eaten.Constant fresh water in your aquarium