Pawfly Aquarium Breeding Box Fish Tank Hatchery Incubator Acrylic Breeder Box for Aggressive Fish GuppyBrand: Pawfly Color: Clear Features: Large Hatching Box: Inner size: 9. 9" L x 4. 1" W x 5. 4" H. The aquarium fish breeding box is a safe haven for vulnerable fry, shrimp, and small fish. Effectively protect newborns from being eaten or attacked to ensure a higher survival rate 3 Versatile Chambers: 2 removable dividers create up to 3 separate compartments. Ideally isolate aggressive or sick fish and acclimate new inhabitants to the tank environment.