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

Color: gray 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.

• The action of two filters: our filter media has mechanical actions to soak dirt, bits and tiny pieces; also with active biological action, odors are banished, the tank is brought back to clarity
• Culture, speedy & purification, true: all blocks size to 6.3 x 1.4 x 1.4 in, with hollowed shapes; holes suck the bits from the area; a vast encourages the spreading of life to back a decay system
• Life that lasts: built of ceramic warmed to 1200℃/2192℉; blocks fight decay, which means years of refinement of drinking water
• Volume of 20 pcs: obtain twenty blocks that meet your support need; they suit freshwater tanks, ponds, sumps, and planted setups
• Use, expansive: our media agrees with all systems; our media helps you whether you install within cylinder, bottom, pond, overhead, or custom sets