The Tunze Skimmer 9012DC is a highly efficient protein skimmer designed to effectively remove organic waste compounds from saltwater reef aquariums. This crucial piece of equipment ensures pristine water quality by extracting dissolved organics before they can break down, contributing to a healthier and more stable aquatic environment for your corals and fish. It is recommended for marine systems ranging from 200 to 1,400 liters (53 to 370 US gallons), depending on the bioload. Key specifications include an adjustable immersion depth from approximately 255 to 285 mm (10 to 11 inches) and a skimmer cup volume of 0.7 liters (0.18 US gallons). It boasts an impressive air capacity of around 450 liters per hour (118.9 US gallons per hour) while consuming approximately 17 watts, with a maximum draw of 21 watts. The compact unit measures 140 x 110 x 415 mm (5.5 x 4.3 x 16.3 inches) and comes equipped with a reliable magnet holder suitable for glass thicknesses up to 15 mm (1/2 inch), powered by a 100-240V / 50-60Hz supply unit with a 3-meter cable to the Turbelle controller. This skimmer is an excellent choice for reef aquarists seeking a high-performance, energy-efficient, and space-saving filtration solution for their medium to large saltwater setups. Its DC pump and precise Turbelle controller allow for fine-tuning to optimize skimming performance, adapting to varying tank conditions and bioloads. The robust magnet holder ensures secure and flexible placement within sumps, making it a versatile and dependable option for maintaining crystal-clear water and supporting thriving reef inhabitants.