VEVOR Protein Skimmer for 20-30 Gal Saltwater Aquarium Hang On with DC Pump, Protein Skimmer with DC Pinwheel Pump, Adjustable Control, for 20-30 Gallon Small Saltwater Aquariums & Reef Tank Fish Tank

Efficient Organic Waste Removal: Equipped with a powerful DC pinwheel pump, this protein skimmer creates dense, fine bubbles that efficiently separate organic waste, keeping your aquarium water clear
Built for Small Saltwater Aquariums: This protein skimmer handles a max air intake of 79.26 GPH / 300 L/H and max flow rate of 132.1 GPH / 500 L/H, great for 20-30 Gal / 80-120 L aquariums with tank rim widths under 0.59 in / 1.5 cm
Easy Adjustable Control: Featuring an adjustable knob, the protein skimmer for saltwater aquarium allows flexible water level adjustments to match different water conditions with ease.
Recommended water level: 7.09 - 9.06 in / 18-23 cm
Low-Noise Operation: The built-in air silencer keeps this aquarium protein skimmer running at just 41.3 dB, about as quiet as a library, minimizing noise disruption for quiet performance
Hassle-Free Cleaning: This protein skimmer includes a 6.09 oz / 180 ml detachable collection cup with a large capacity to reduce cleaning frequency. The pinwheel pump is easy to disassemble for quick and convenient maintenance