Give your newborn fish the safest start with the FinyPetz Double Deck Aquarium Breeding Box, designed for maximum protection, stress-free breeding, and long-lasting durability. Made from high-quality crystal-clear acrylic, this large 13×10×7 cm breeder box helps fish keepers safely separate mother fish from newborn fry, prevent predation, and maintain a healthy aquarium environment. This upgraded model features strong suction cups mounted on the top, ensuring the box stays firmly attached to any aquarium glass without floating or sinking. The double-deck design allows the mother fish to stay in the upper chamber while the fry safely drop into the lower compartment through the central divider—significantly increasing survival rates. Perfect for Guppy, Molly, Betta, Platy, Tetra, Swordtail, and other livebearers, this breeding box also works as a quarantine chamber for sick, injured, or aggressive fish. The clear acrylic body ensures easy monitoring, while the smooth, anti-scratch edges ensure complete safety for delicate baby fish. Whether you are a beginner or an experienced aquarist, the FinyPetz Breeding Box provides a secure, convenient, and effective way to protect newborn fish, reduce tank aggression, and promote healthy breeding in any home aquarium.