Box filter with filter sponge and pumice stone - small

• Efficient Box Filter with Filter Wool and Pumice Stone
  This box filter is perfect for maintaining a healthy bacterial culture in your aquarium. The filter wool provides both biological and mechanical filtration by trapping fine particles in the water, ensuring crystal-clear conditions.
• The pumice stone has a porous structure that offers a large surface area for beneficial bacteria to grow.
• The box filter is connected to an air pump, which creates a steady water flow through the filter media and wool, while the air stone provides additional aeration.

Air pump and airline tubing are required (not included).