OCTO aka Reef Octopus CR-100 Calcium

Aquariums Australia

Not for Click and Collect as item is in warehouse


An ideal solution/upgrade for the discerning hobbyist

Quality, design and affordability define the Reef Octopus Classic Calcium Reactor series. Available in 2 different models that feature reverse flow water current for maximum water and C02contact time with coral media.

All models come with PH probe holders to monitor Ph levels in the main reactor chamber and built in bubble counters to monitor Co2 drip rates. To help you meet the challenging task of maintaining alkalinity, calcium and trace elements, consider adding a Reef Octopus calcium reactor to your aquarium system.


Features & Benefits


  • Reverse flow CO2 recirculating design
  • Probe holder with Plug
  • Built in Bubble Counter
  • Easy to Remove Lid
  • Solid Acrylic construction
  • Complete with Pump

What's included

CR- incl


Technical Data


CR- tech

Circulation Pump

CR-tech pump


 Pumps (Aquatrance) – CE certified


Explosion Charts

Explosion Chart for CR-100 and CR-140

Explosion Chart for CR-100 and CR-140