A refugium is a dedicated space for beneficial creatures like copepods to multiply without the threat of being eaten by your aquarium fish. In recent years, refugiums have been used more frequently for cultivating macro algae like chaetomorpha, which absorbs nitrates and phosphates as it grows. If you don't have a sump with a refugium chamber, no worries! There are a multitude of hang on back refugium options available.
Set Descending Direction

19 Items

  1. HOB-R Hang-On-Back Refugium
    HOB-R Hang-On-Back Refugium
    $142.99 $142.99

  2. CUBE Nano Refugium Sump
    CUBE Nano Refugium Sump
    $289.98 $289.98

  3. Pod Hotel Copepod Haven
    Clear Water
    Pod Hotel Copepod Haven
    $27.95 $27.95