Placement Install Bio Balls in the biofiltration chamber of a wet/dry filter, sump tank, or canister filter. Avoid placing them in areas with strong water flow, as this can dislodge bacteria. Quantity Use an appropriate number of Bio Balls based on the tank size and bio-load (number of fish and waste production). Maintenance Rinse Bio Balls periodically in tank water to remove debris, but avoid over-cleaning to preserve beneficial bacteria. Combination with Other Media Pair Bio Balls with mechanical and chemical filtration media (e.g., filter floss, activated carbon) for comprehensive water filtration.