20 Pcs Large Aquarium Bio Media Blocks, 6.3 Inches Ceramic Fish Tank Bio Media for Koi Pond, Aquarium Filter Media with Tiny Holes, Top Filters, Sump Tank, Canister Filter

Color: yellow Material: ceramic Size: 6.3 x 1.4 x 1.4 inches (L x W x H) Package Includes: 20 x bio media block Note: - Please refer to the measurement. Tiny measuring error is allowable in normal range. - There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item.

• Filtration, double: this filter media provides physical filtration to trap grime, impurities, and suspended particles; also supports effective biological filtration to eradicate smells and detrimental substances, refining your tank's water to clarity
• Cleansing, efficient & quick culture: every block is 6.3 x 1.4 x 1.4 inches (l x w x h) and boasts a design riddled with tiny holes, allowing considerable absorption of residue; delivers abundant area for bacterial growth, fueling a strong nitrification network to neutralize impurities
• Life, long: made of ceramic and treated at a heat of 1200℃/2192℉, these blocks are firm, ensuring ongoing water enhancement for many years
• Volume, two tens: a package comes with twenty biological media blocks, each 6.3’’ long with a 0.6’’ hole diameter, which should be sufficient for future tasks and swaps; effectively in planted aquariums, reservoirs, and pools
• Scope, wide: the bio media is versatile with many filter setups; no matter if used with bottom, top, or tailor-made units, these blocks adapt well