Skimz Monzter CM202 External Calcium Reactor

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Maintain the calcium in your tank by adding a Skimz Monzter E-Series CM202 Calcium Reactor.

  • Rated for tanks up 660 gallons (2500 Liters)
  • Feed Rate: 317 - 528 GPH (1200-2000 LPH)
  • Circulation Pump: Skimz E5000
  • Dual Stage Chambers
  • Power Consumption: 80W
  • Media Load: ~26.5 lbs (12kg)



  • Hand-crafted with high quality materials and precision CNC machined parts and Georg Fischer fittings
  • Recirculating design along with high efficiency pump helps to maximize the CO2 injected into reactor
  • Water Swirling Chamber (WSC) integrated into base to force water upward evenly - minimizing dead spots
  • Cone-Shaped Gas Channeling Chamber (GCC) at top of reactor helps channel undissolved CO2 to recirculate via the circulation pump
  • Space for pH probe
  • Easily fill additional media
  • Method of feeding: Feed pump or gravity


Reactor Specifications:

  • Body Diameter: 7.87" (200mm)
  • Holds roughly 26.5 pounds of media
  • Foot Print: 10.08” x 12.99” (256mm x 330mm)
  • Total Height: 22.64” (575mm)
  • Feed Inlet: 1/4" (6.35mm) polyethylene tubing

E5000 Pump Features:

  • Skimz worked with an Italian pump manufacturer, using advanced material for the impeller, seamless-coated rare earth magnet for durability and high performance.


Skimz Manufacturer's Manual

More Information
Product Name Skimz Monzter CM202 External Calcium Reactor
SKU 208153
Media Capacity 5 Cups / 1183mL, 6 Cups / 1419mL, 7 Cups / 1656mL, 8 Cups / 1892mL, 9 Cups / 2129mL, 10+ Cups / 2365mL
Reactor Placement External, In Sump
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