Aqua One CF500 Complete Filter Media Service Kit

This exclusive service kit contains all the filter media originally supplied with the Aqua One CF500 canister filter, including: 1. 37s Blue sponge pad, 1. 38s black sponge pad, 2. 37w polymer wool pads and a 250g pack of Aqua One BioNoodles. Its an entirely fresh start with no waste and no left over pads you'll never use (except for a spare wool pad for your first clean out) If your aquarium is mature and well stocked its best to change the filter media slowly over a period of time rather than all at once.