Saim Retangle Shape Breeding Divider Tank for Aquarium, Hang-On Breeding Box, Large Safe & secure tank for breeding, isolating or acclimating fish Perfect isolator for aggressive fish, injured fish, small fish, shrimp, clownfish, and other marine fishes. Prevent the baby fish from the adult fish's attack and improve the survival rate of the baby fish. Material : Hard Plastic; Color : Clear Size measures about: 3.94"x2.75"x5.1"