Box filter with filter sponge and pumice stone - large

Efficient Box Filter with Filter Sponge and Pumice Stone

• This box filter is perfect for maintaining a healthy bacterial culture in your aquarium. The filter sponge provides both biological and mechanical filtration, trapping small particles in the water and ensuring crystal-clear conditions.
• The pumice stone has a porous structure, offering a large surface area for beneficial filter bacteria to grow on.
• The box filter is connected to an air pump, which creates a steady water flow through the filter media and sponge, while the included air stone ensures effective oxygenation of the water.

Note: An air pump and airline tubing are required (not included).