The Fluval Multi-Chamber Holding & Breeding Box is a versatile aquarium accessory designed to provide up to three separate compartments for fry, sick or weak fish, or new arrivals needing acclimation. Easily attaching to the side of most aquariums up to 1” thick, this breeder box allows water from the main tank to circulate naturally, creating a safe and stable environment without additional heaters or filters. Ideal as a hatchery, incubator, or quarantine space, it ensures higher survival rates for fry and a secure space for injured or acclimating fish. The box is suitable for both freshwater and saltwater aquariums.