Activated Carbon Filter Cotton 45*25*1.8

An Activated Carbon Filter Cotton sheet measuring 45 × 25 × 1.8 cm is a highly efficient choice for purifying aquarium water.

Main Functions

Chemical Purification: Absorbs dissolved organic waste, toxins, chlorine, and residual medications.

Water Polishing: Eliminates yellow discoloration, foul odors, and tannins released by driftwood.

Mechanical Filtering: The 1.8 cm sponge base physically traps fine debris and floating particles.

Safe Chemistry: Does not contain phosphates and will not shift the stable pH of your tank.

Filter Compatibility

This 45 × 25 cm sheet is cut-to-fit, making it suitable for a wide range of systems:

Canister filters

Sump and bottom filter tanks

Top trickle or overhead filtersHang-on-back (HOB) units

How to Use and Maintain It

Rinse first: Lightly wash the pad with lukewarm tap water before installation to remove any loose carbon dust.

Cut to size: Lay your old filter pad over this sheet as a template and trim it with scissors.

Correct placement: Position the carbon sponge after your coarse mechanical sponge so it does not clog prematurely with large fish waste.Regular replacement:

Activated carbon saturates over time. Replace the pad every 3 to 4 weeks to maintain its chemical absorption properties.