Ok cast your votes. This is on HOB filters. My vote went for bio-wheels since the wheels are easy to maintain and almost never need cleaning at all. Plus the wheel has no mechanical capabilities and it has a very large surface area.
Bio-wheels:
All penguin models
All Emperor models
DOES NOT INCLUDE CANISTER
AquaClear
All AquaClear HOB models
Bio-wheels:
All penguin models
All Emperor models
DOES NOT INCLUDE CANISTER
AquaClear
All AquaClear HOB models
Last edited: