OCTO. Classic Calcium Reactor CR 100, w. AQ1200 pump

Out of stock


Reef Octopus   CR-100 Calcium Reactor

Rated for Aquariums up to 90 Gallons

Footprint: 9.5″ x 7.5″ | Body Diameter: 4″ | Height: 20″ 
Recirculation Pump: Aquatrance 1200

 Technical Data





  • Reverse flow and CO2 Recirculating Design

  • Auto Fill Bubble Counter

  • Probe Holder w/Plug*

  • Easy to Remove Lid

  • Precision Effluent Control Valve

  • Solid Construction

  • 1/4"quick connect fittings

  • 1yr Pump Warranty

* Does not include PH probe.

OVERVIEWQuality, design and affordability define the Octopus Calcium Reactor series. Available in 3 different models that feature reverse flow
 water current for maximum water and Co2contact time with the 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. 

How it works
A calcium reactor is essentially a chamber full of aragonite, which is the crushed skeleton of ancient hard corals. Aquarium water is pumped 
through this chamber along with pressurized carbon dioxide (CO2). The CO2 lowers the pH in the chamber to an acidic level which dissolves
 aragonite media into the aquarium water. In addition to dissolving the calcium, this process also dissolves nearly all the minerals and trace 
elements the coral used in order to grow.

Automated Calcium and Alkalinity supplementation - When set up properly and used correctly, a calcium reactor can maintain or increase 

calcium levels with little to no maintenance.



Calcium/Alkalinity Demand

- 120 Gallon – Light Demand  

- 100 Gallon – Medium Demand     

- 75 Gallon – Heavy Demand

Technical Specs

Body Size: 4in  
Footprint: 9.5in x 7.5in
Total Height: 20in
Media Capacity: 1.5L (.39gal)
Inlet Size:  1/4in
Max Feed Rate: 150GPH 
Note: Suggest a feed pressure slightly higher than a full flowing influent

Recirculation Pump Information

Reef Octopus Aquatrance 1200 water pump
Wattage: 15w