BlueYu Aquarium Filter, Fish Tank Filter 4-in-1 for 30-80 Gallon Tanks, Submersible Internal Filter with Wave-Maker, Oxygenation & Adjustable Air Flow for Freshwater/Saltwater/Turtle Tanks (12W)Brand: BlueYu Color: Black Features: Superior Performance Fish tank filters with 2 stage filtration, adjustable oxygenation and high efficiency water circulation, delivering crystal clear water and optimal oxygen levels. Max flow: 200GPH for 30 80 gallon tanks Dual Layer Filtration The aquarium filter features a modular design, allowing you to choose between single layer or dual layer configurations, making it suitable for aquariums ranging from 30 to