Small & Medium Boxes Kit: Inner size: 3.8" H x 2.5" D. Outer size: 5.1" H x 3.2" D. Suitable for medium fish tanks with a length of less than 23 inches. Perfect for shrimp betta, guppy, clownfish, platy or other aquatic dwellers
Practical Breeder Box: 2 separate chambers provide a completely safe environment for the parent fish to spawn and raise baby fish. Greatly protect newborn fry from being eaten or attacked and improve the survival rate of baby fish
Unique Mesh: Upper plastic mesh with big holes enables fry to easily fall into the protective space below. The bottom fine nylon netting with needle-sized holes always allows for smooth water flow while securely containing the inhabitants
Multipurpose: Also work great as a separator! In addition to serving as a hatchery, the aquarium fish breeding box always keeps fierce or aggressive fish out, providing a safe shelter for weak or injured fish. Or isolate them inside for domestication
Floating Design: No suction cups required! 2 foam rings with negligible weight easily keep the plastic isolation box floating on the water at all times. And the depth of the 2 boxes in the water can be changed at will by moving the foam rings up and down