The easiest way to create a breathtaking fresh or saltwater aquarium set-up is with the SeaClear System II Aquariums. They're equipped with a wet/dry filtration system which accommodates biological, chemical and mechanical filtration media, as well as space for a heater and SeaClear Protein Skimmer if needed (each sold separately). The tank itself is SeaClear's sparkling acrylic, with smooth rounded corners for great looks and safety. Convenient, efficient and economical to run. You will need to purchase an air pump and lighting in order to begin using your System II Aquarium. SeaClear acrylic aquariums, manufactured by CASCO Group, Inc, carry the limited lifetime warranty against leakage. Features: Built-In Wet/Dry Filtration System, 4 Way Adjustable Skimmer, Air-injection Nozzle, Media Tray Includes: Aquarium, 350 gph Submersible Pump Used For: Freshwater Fish & Saltwater Fish Tank Size: 50 gallon Installation Type: Table Color: Black Shape: Rectangle Dimensions: 15"L x 36"W x 20"H Material: Acrylic Warranty: Limited Lifetime Size: 50 Gal. Color: Black.