
VarioS CR3000 Dual 7inch Chamber Calcium Reactor
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Price facts
- Lowest price today: $1,027.94 at Aquarium Specialty (checked Nov 12, 2026).
- Checked at 3 stores.
VarioS CR3000 Dual 7inch Chamber Calcium Reactor prices at every store
- Fish Tanks DirectNew
In stock
$1,027.94Free shippingChecked 1 h ago - Lush CoralsNew
In stock
$1,027.94Free shippingChecked 1 h ago - Aquarium SpecialtyNew
Availability unknown
$1,027.94Free shippingChecked 1 h ago
Also available at
- Lush CoralsCheck price at Lush Corals
VarioS CR3000 Dual 7inch Chamber Calcium Reactor price history
Lowest price we've seen: $1,027.94 on Nov 12 at Fish Tanks Direct. Tracked across 3 stores since Nov 12.
About the VarioS CR3000 Dual 7inch Chamber Calcium Reactor
Rated for Aquariums up to 580 Gallons
Footprint: 15.75" x 13.5" | Body Diameter: 7" | Height: 23"
Recirculation Pump: Reef Octopus VarioS 4
VarioS DC CR3000D Dual Chamber Calcium Reactor
The VarioS CR is perfectly capable of meeting the challenging task of maintaining alkalinity, calcium, and trace elements on a demanding reef system. Quality, design, and controllability define the Reef Octopus VarioS Calcium Reactor series. Available in 3 different models that feature the new VarioS variable speed pump and reverse flow water current reactor design to maximum water and CO2 contact time with the media. All models come with a pH probe holder(probe and pH controller sold separately) to monitor Ph levels in the main reactor chamber and built-in bubble counters to monitor CO2 feed rate.
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.
Features
• Rated up to 580gal Aquarium
• Dual-Chamber design buffers outgoing effluent Ph
• 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
VarioS CR-3000D Technical Specs
Body Size: 7in
Footprint: 15.75in x 13.5in
Total Height: 23in
Questions and answers
- Where is the VarioS CR3000 Dual 7inch Chamber Calcium Reactor cheapest?
- At Aquarium Specialty, for $1,027.94, as of our latest check.
- Where can I buy the VarioS CR3000 Dual 7inch Chamber Calcium Reactor?
- 3 stores we checked sell it, including Aquarium Specialty, Fish Tanks Direct, Lush Corals.






