EW‑18 circulation pump, 4000 l/h

The Hsbao EW-18 is a circulation pump for aquarium keepers who want to control water movement in their tank, not just push water through it. Uneven circulation limits how nutrients, minerals and oxygen reach fish, corals and plants, so this pump is aimed at setups where flow direction and rhythm matter.

Why it matters

• Six operating modes, from a constant stream (M1) to synchronized or alternating waves (M2, M3), a sinusoidal flow curve varying between 30% and 100% (M4), random reef-style pulses (M5) and a fully user-defined advanced mode (M6).
• The LCD controller includes a light sensor that switches the pump to gentler operation at night, imitating tidal movement. The night mode can be turned off manually.
• The FEED function pauses the pump for 10 minutes, which is useful during feeding of fish and corals.
• The ceramic shaft is designed to withstand contact with water and salt, and the controllers communicate wirelessly, so several pumps can be programmed from a single controller.

Specifications

• Brand: Hsbao
• Model: EW-18
• Power: 10 W
• Maximum flow: 4000 l/h
• Dimensions: 62 x 62 x 88 mm
• Weight: 0.75 kg
• EAN: 5903900042888

What it works with

The pump is listed in the exotic underwater category and is intended for aquarium setups that need strong, adjustable circulation, including tanks with corals. Its strong magnetic mount allows it to be fitted and moved to another position inside the aquarium without drilling. Pair it with additional EW pumps when you want synchronized or alternating wave patterns across the tank.