Xinyou XY-1821 Bio-Logical Aquarium Filter Sponge (40x20 cm)

Achieve crystal clear water and a healthy aquatic environment with the Xinyou XY-1821 Bio-Logical Filter Sponge, available now at www.onyxaqua.com. This high-quality filter wool pad is designed to provide exceptional mechanical and biological filtration for a wide variety of aquarium setups.

Whether you are running a simple hang-on-back filter, a large canister, or a custom sump, this highly adaptable filter pad is the perfect addition to your maintenance routine.

Key Features & Benefits

• Universal Compatibility: This versatile bio sponge filter is perfectly safe and highly effective for use in Marine, Freshwater, and Planted tanks.

• Fully Customizable: Measuring a generous 40 cm by 20 cm, you can easily cut this pad to the exact size and shape you want to suit your specific filter tray or compartment.

• Optimal Bacterial Growth: According to expert experiments, the specific molecule hole size and softness of this sponge create the absolute best environment for beneficial bacteria to develop and thrive.

• Enhanced Water Quality: The bio sponge actively works to dissolve fish waste and improve overall water quality, which in turn helps reduce the death rate of fishes in your tank.

• Durable & Reusable: Designed for longevity, the sponge's shape will remain intact even after washing and cleaning. The pores will not easily become blocked by dirty particulates, allowing it to be reused continuously.

Technical Specifications

Maintenance Guidelines & Expert Tips

To ensure your Xinyou XY-1821 Filter Sponge lasts a long time and keeps your aquarium healthy, regular maintenance is required.

• Manufacturer's Cleaning Advice: The manufacturer suggests washing the bio sponge filter once a month using running tap water to clean it.

• Onyx Aqua Expert Correction: While the sponge is durable enough to withstand tap water, we strongly advise against using untreated tap water to clean any biological media. The chlorine and chloramine in tap water will instantly kill the beneficial bacteria living in the sponge, which can cause a dangerous ammonia spike in your tank. Instead, simply rinse and gently squeeze the sponge in a bucket of siphoned aquarium water during your regular water changes. This removes the physical dirt while preserving your vital biological colony!