Dennerle is the only aquatic supplier that can fulfill all these requirement from a sing source. Nano Filter Extension

Dennerle Filter
  • Filter
  • Filter
  • Filter

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.


Filter attachment to fill with Nano filter material:

  • ActiveCarbon
  • Bio FilterGranules
  • AlgaeStop

Suitable for:

  • Nano corner filter
  • XL corner filter

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