Double filtration for small tanks Equipped with two filtration stages, this pump reduces impurities and helps maintain clear water in small tanks. It combines functional filtration with an oxygen boost system to support aquatic health and overall water quality. Quiet, noisereduced operation Engineered with an optimized motor structure and vibration reduction technology, the pump runs quietly. This makes it suitable for bedrooms, offices, and other quiet spaces where calm operation is important. efficiency performance with easy upkeep The pump delivers efficiency and bidirectional flow to improve particle capture. Supported by multihole filter media, it helps keep the tank cleaner with less ongoing maintenance and longer intervals between cleanups. Versatile fit for different tank shapes Designed to accommodate various tank shapes through an adjustable outlet nozzle and adjustable flow strength. Its modular design lets you adapt quickly without complex tools, making it easy to tailor to your setup. 23 practical use scenarios Nano freshwater or betta tanks: provides reliable filtration and oxygenation in compact setups while remaining quiet. Quarantine or hospital tanks: helps improve water quality quickly to support treatment and reduce stress on fish. Small community or uniquely shaped tanks: adjustable outlet and flow allow you to fit the pump to irregular layouts without tools. Key attributes at a glance Function: double filtration with oxygen boost, bidirectional flow, multihole filter media Compatibility: adjustable outlet nozzle, adjustable flow strength, modular design for varied tank shapes Size: compact design intended for small tanks Performance: efficiency operation with reduced upkeep Application flexibility: suitable for bedrooms, offices, and other quiet spaces where low noise is important