Fluval Multi-Chamber Holding and Breeding Box, Large – Up To 3 Separate Housing CompartmentsCompatible with Most Aquariums: Easily attaching to the side of most aquariums up to 1 thick, the Multi Chamber Holding & Breeding Box provides up to 3 separate compartments for protecting fry, sick weak fish or new fish that require acclimation. Required Parts: Please note that this multi chamber will require an Air Pump (1 L per minute) and Airline Tubing, both of which are sold separately. Usage: Ideal as a hatchery and incubator to help protect