crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2933803:04crwdne2933803:0

crwdns2933797:0Connorcrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Connor

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0

crwdns2933807:0crwdne2933807:0

[title] Remove Existing Aquarium Filter Medium
[* black] Unplug your aquarium filter.
[* black] Lift the lid of your aquarium filter's canister.
-[* black] Carefully remove the filter medium sponge.
+[* black] Carefully remove 10-25% of your biological filter media.