Aquarium Biological Media Replacement

crwdns2936025:04crwdne2936025:0 —

crwdns2935483:0crwdne2935483:0

Unplug your aquarium filter.
Lift the lid of your aquarium filter's canister.
Carefully remove 10-25% of your biological filter media.

crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0

crwdns2935431:0crwdne2935431:0