Stitcher
Member
I see all sort of advertising for these Bio Balls but my canister filter came with Ceramic Cylinders for a media.
I just bought a used tank and canister filter but there is no media for the filter. Have to buy some new media for it.
Does anyone know what's better? The Bio Balls or Ceramic Cylinders ?
I just bought a used tank and canister filter but there is no media for the filter. Have to buy some new media for it.
Does anyone know what's better? The Bio Balls or Ceramic Cylinders ?