YEE 6D Multi Layer Biological Filter Media Sponge (40*30*3.5) CM For Aquarium Filters and Koi Ponds | 5 Layer Filteration With Multi Wash and No Glue For Crystal Clear Water and Bacteria

Strong water purification ability Can be used repeatedly Cut to fit The yellow layer is facing up and the white layer is facing down. Establish a bacterial nitrification system. The activated carbon layer can adsorb a large amount of impurities.

• 5 LAYERS OF FILTER PAD: Our 6D aquarium filter media is the ultimate in high-efficiency filtration. With 2-layer mesh pad, honeycomb cotton, activated carbon pad, biochemical cotton, nano biochemical cotton, fiber biochemical cotton, and cloud blanket filter cotton, our filter easily traps different particles and floating debris to keep your aquarium crystal clear.
• HONEYCOMB DESIGN: Our aquarium filter media adopts a honeycomb shape design, which has strong water permeability and active carbon absorbs impurities. Scientifically filter bacterial impurities, establish a nitrification system, and stabilize the cultivation of nitrifying bacteria.
• EXCELLENT DURABILITY: Our pond filter pad is made of strong mesh cloth that won't easily deform no matter how many times it's washed. After cleaning, it looks just like new, so there's no need to replace the filter pad frequently.
• CUT TO FIT: Aquarium filter mat can be cut to the required size through the filter system. It can be used for many purposes, such as various filtration systems, freshwater tanks, sea water tanks, fish tanks, pond filters, waterfall filtration, and aquaponics systems.
• ENVIRONMENTALLY FRIENDLY: Our aquarium filter media and fluorescent agents are made with environmentally friendly materials. The 6-layer filter pad integrates hot-melt technology and does not use adhesives, so it's not easy to rot and reduces pollution to the aquarium. We provide fish with clean water quality and a safe living environment, so that the fish can lead a healthy life.