1. Multifunctional design: This aquarium breeding box serves multiple purposes, including algae storage, placement for filter media, isolation of new fish, and as a breeding box. It features a water circulation plate to ensure full water flow and effective filtration. 2. Enhanced protection for fry: The breeding box shields newborn fry from attacks by adult fish and significantly increases their survival rate. It also serves as an ideal rearing chamber for safe growth of young fish. 3. Premium material: Made from high quality polycarbonate PC, the breeding box is durable and designed for reliable long term use. 4. Aquarium isolation box: An isolation box for aquariums, suitable for fry, Medaka, Bettas, clownfish. 5. Use scenario: Breeding in a community tank. Place the box in your tank to keep fry away from adults while water circulates and filtration continues. 6. Use scenario: Quarantine or rear young fish. Use to isolate newly hatched fry or small species such as Medaka, Betta, clownfish to avoid aggression and monitor development. 7. Use scenario: Temporary rearing chamber. Use to monitor early growth before transferring to a larger tank.