Innovative Marine BioSkim DC Nano AIO Protein Skimmer Lets welcome Innovative Marines newest gadget in the already popular nano line, the BioSkim DC Protein Skimmer. Energy efficient, remarkably quiet and ultra-fast break time in are just a few features packed into this tiny body. Constructing this skimmer was no easy task; our mission was to encompass all of the features of a premium protein skimmer at a fraction of the cost and to keep the guess work drop in simple. The BioSkim DCs engine recirculates bubbles effectively, removes fish waste, increases oxygen levels and propels unwanted organics from your aquarium, all while keeping the noise whisper quiet and your display bubble free. Features: Fits Most AIO and Tank Alone Aquariums Low Voltage Direct Current Needle Wheel Pump Rated for up to 34 Gallons Adjustable Height Hanger Waterline Indicator External Air Silencer Drop In Convenience Bubble Plate Diffuser Low Profile Cup Dry Skim Convex Lid For Marine / Saltwater Use Only