Fluval Large Multi-Chamber Holding & Breeding BoxMulti-functional breeder box allows for 1, 2 or 3 separate housing compartmentsIdeal as a hatchery and incubator to help protect new born fry from being eaten (improves survival rate)Provides a safe haven for injured or weak fishHelps acclimate new fish as water circulates throughout box from aquariumHangs onto aquarium exterior for easily observing fish and convenient maintenanceSpace-saving design measures 10.25 L x 5.5 W x 4.75 H / 26 x 14 x 12 cm and holds 0.5 US Gal / 1.9 L of waterFor use with frameless aquariums with a glass thickness of 0.25-0.4 / 5-10 mm and framed aquariums less than 1 / 47 mmRequires Air Pump (1 L/per minute Item# A849) and Airline Tubing (Item# A1141) sold separatelyUtilizes same conditioned water as aquarium no additional heater or filter requiredFor use in fresh and saltwater aquariumsBreeding box with coverIntake tube3 x Partition plates2 x Leveling adjustersAir valveAirline tube 12 / 30 cmDischarge capIntake extensionO-RingStrainerCover clasps2 x Slit plates for discharging water (1 thick frame 3 bars, 1 thin frame 5 bars)2 x Attachments for frameless tanks