Optimum Filter Extension
Attachable additional filter for Nano corner filter and XL corner filter
- Especially recommended where fish are present.
- Increases filter capacity or can be used with phosphate binders or active carbon for short-term additional filtration.
- For filling with Nano filter medium (Bio Filter Granules/Algae Stop/Active Carbon)
- Simply fill, rinse (to remove possible residue caused by abrasion in transport) and clip on.