Description
Super-size it - the 2" bio sponge balls make a great bio filter material for aquariums and ponds. When used in trickle tower type filters, their larger diameter is excellent for removing those harmful gases from your water. They can strip co2, nitrogen and other gases while increasing dissolved oxygen levels dramatically. Higher dissolved oxygen levels mean healthier fish, lower stress levels, higher growth and increased disease resistance. High-Surface-Area Filtration for Ponds & Sumps Maximize water turnover and filtration efficiency in high-flow aquatic systems. The CNZ 2" Bio Sponge Ball 50-Piece Set combines high-surface-area polypropylene outer spines with a dense internal foam core. This dual-action design distributes incoming water evenly across filter media chambers while catching fine floating particles. Easy Handling with Mesh Media Bag Included with the 50 bio-balls is a heavy-duty mesh bag with a zipper closure. The bag allows for quick insertion, removal, and cleaning inside canister trays, sump bays, or pond waterfall boxes without individual balls floating away or scattering.
- BULK 50-PIECE VALUE PACK WITH MESH BAG: Includes 50 large 2-inch bio sponge balls and a durable mesh media bag with a zipper enclosure for easy handling and maintenance.
- DUAL-ACTION FOAM & POLYPROPYLENE DESIGN: Features an outer ribbed plastic shell for high surface area and an internal open-cell foam core that traps floating debris.
- ENHANCES GAS EXCHANGE & TURBULENCE: Designed with multi-pin channels to create water turbulence in sumps and trickle towers, increasing surface gas exchange and dissolved oxygen levels.
- CLOG-RESISTANT & REUSABLE: High-void-space construction resists organic sludge buildup, allowing water to flow freely while rinsing easily in fresh water for long-term reuse.
- UNIVERSAL AQUATIC USE: Perfect for large canister filters, wet/dry trickle filters, sump filtration basins, waterfall spillways, and outdoor koi pond filtration systems.


