Creates a safe and secure breeding box for while monitors your baby fish easily A separating hatchery for pregnant fish, protecting new born fish from being attacked, improving the survival rate of newborns fish Space-Saving: Floating, double layer combination, saving space Easy Use: Detachable box, easy to disassemble and clean Isolation Box: Unique clear panel, fish jumping out Can be used as the spawning box for the viviparous fishes Especially great for aggressive fish or injured fish