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Reef Octopus 5000 Calcium Reactor SRO-CR5000

Sku: SRO-CR5000

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Reef Octopus 5000 Calcium Reactor SRO-CR5000

Sku: SRO-CR5000


Availability: Usually Ships in 4 - 5 Business Days After Submission of Order

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  • Reverse flow and CO2 Recirculating Design
  • Auto Fill Bubble Counter
  • Probe Holder w/Plug*
  • Easy to Remove Lid
  • Precision Effluent Control Valve
  • Solid Construction
  • 1/4in Quick Connect Fittings
  • 2yr Pump Warranty

* Does not include PH probe.



High performance reverse flow design, superior craftsmanship and a 2 year pump warranty are just a few of the features on the Super Reef Octopus calcium reactors. If you are concerned about calcium levels due to your calcium loving animals look no further than our SRO calcium reactors. All SRO calcium reactors come with our high water volume Water Blaster pumps which come standard with Silicone Carbide shafts and bearings, this means no worries of moving parts freezing up causing broken shafts. All SRO calcium reactors come with PH probe holders to monitor PH inside the first chamber of the reactor. Equipped with a PH probe holders to mount a PH probe 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 Super 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.


Body Size: 9in 
Footprint: 16.5in x 11in
Total Height: 22.8in
Media Capacity: 9.3 Liters \ 20-24lbs of course media
Feed 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 Water Blaster HY-5000 Pump
Max Water Flow: 1300gph
Max Head: 12ft
Wattage: 60w
Efficiency: 95%
Dimensions (L x W x H): 9in x 4½in x 8.3in

Manufacturer Warranty

- 2 year warranty on pump
- 1 year on rotor
- 1 year on Reactor body 

Reef Octopus can not be responsible for consequential damages arising from installation or use of this product. Reef Octopus warrants the pump to be free from defects in material and workmanship under normal use and conditions for the warranty period from the date of purchase.

CoralVue liability under this warranty shall be limited to repairing or replacing at CoralVue’s discretion, without charge. CoralVue will not be liable for any cost of removal, installation, transportation, or any other charges which may arise in a warranty claim.

NOTE: This warranty is void if the product is damaged through abnormal operating conditions, accident, abuse, misuse, unauthorized alteration or repair. This warranty is valid only in North America and is non-transferable. Consumable spare parts are not applicable to the warranty.

*Reef Octopus reserves the right to change/modify this product without notice.

Additional Information

Additional Information

Manual No
Product Specs


Manufacturer Reef Octopus


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