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Aqua One 139s,140s,139w Ocellaris 1400 Filter Media Kit
Replacing the Sponge Foam and the Wool Pad whenever they become soiled will help you retain clear and odour free, clean water. The foam creates a large surface area for bacteria to colonize as well as filtering large debris. The wool cartridge filters finer debris and particles. Noodles create another wall against unwanted items being filtered through the tank.