Aquarium Bio Balls Filter Media 500ml, Extra Porous Surface

Key features

• [Enhanced Biological Filtration] Mini 0.87in bio balls with thousands of microscopic pores redirect water and maximize surface area, allowing beneficial to thrive and break down , keeping water crystal clear in freshwater tropical tanks and saltwater aquariums.
• [Durable & Safe Construction] Crafted from sturdy non-deforming plastic that maintains its shape under constant water pressure, won't leach chemicals or alter pH balance, giving you peace of mind when used in koi ponds outdoors or delicate planted aquarium setups indoors.
• [Versatile System Compatibility] Works seamlessly as pond filter media in pressurized ters, hang-on-back filters, and sump systems, also functions as aquarium filter balls in internal power filters, suitable for both above-ground patio ponds and basement fish room installations.
• [Reusable & Low Maintenance] Simply rinse these fish tank filter media balls every 3 months using tank water during routine water changes, includes a handy mesh bag for quick retrieval and replacement, eliminating the hassle of buying new filter cartridges every month.
• [Complete Setup Solution] Comes ready to use with a 500ml box of biological filter balls plus a premium mesh bag for immediate deployment, perfect for upgrading existing filtration or starting a new tank, saves you the extra trip to purchase separate filter accessories.

Free shipping included. 30-day hassle-free returns.