Small Breeder Box: Size: 15.7 L x 14.2 W x 14.7 H (cm). The fish tank breeder net is a safe haven for vulnerable fry, shrimp, and small fish. Effectively protect newborns from being eaten or attacked by other tank mates. Ideal for 35-150 L aquariums. 3 Versatile Chambers: 2 removable dividers create up to 3 separate rooms. The lower half makes an ideal hatchery for breeding pairs, and the other 2 compartments can isolate aggressive or sick fish. Enjoy a peaceful tank with a higher fry survival rate. Safe & Reliable: Sturdy, fish-safe plastic frame effectively resists warping or breakage even after long-term soaking. No worries about odors or fading. The 2.5 mm narrow gaps in the 2 dividers stop fish from invading other chambers for better separation. Strong Nylon Mesh: Featuring an elastic string at the opening, the flexible nylon net always wraps snugly around the isolation box frame. Its 2 mm fine holes prevent any small aquatic pets from escaping while ensuring smooth water flow. Easy to Install: 4 detachable suction cups allow you to instantly fix the fish breading box on any flat tank wall. No need for extra tools! You can also fully disassemble the box for thorough cleaning and maintenance.