1. Secure suction cup attachment for hassle-free aquarium placement and reliable baby fish protection. Crafted for durability, this breeder box provides structured usability while preventing movement shifts, optimizing hatchling safety for Betta fry. 2. Sturdy lightweight acrylic build for long-term fish care and reliable nursery management. Designed for efficiency, this breeder box maintains structured usability while ensuring effortless aquarium placement and preventing wear. 3. Transparent aquarium separator for hatchling monitoring and structured water flow efficiency. Engineered for visibility, this breeder box enhances structured usability while preventing tank overcrowding, supporting nursery organization. 4. Multi-purpose fish breeder box for Betta, Guppy, Killifish, Shrimp and reliable aquarium hatchling protection. Built for practicality, this baby fish separator maintains structured usability while preventing disruption, supporting aquatic management. Use scenarios - Betta fry isolation in a main tank: attach the breeder box with the suction cups, separate hatchlings from adults, monitor progress through the transparent separator, and maintain appropriate water flow to support safe growth. - Nursery management for livebearers and beginners: use as a dedicated nursery box to protect fry (Guppy, Killifish) or shrimp after birth, reducing predation risk and easing feeding and growth tracking. - Maintenance or transport: move the breeder box to a different tank or remove for cleaning without exposing hatchlings to disturbance, ensuring consistent hatchling protection during handling.