An ideal solution/upgrade for the discerning hobbyist
 
OCTO CalReact features high-quality cast acrylic body construction, a PH probe holder to allow constant monitoring of water alkalinity (PH level) with the use of a PH probe (sold separately), a built-in bubble counter for CO₂flow rate calculation , reverse water flow for CO₂recirculation to maximise contact time with the coral media which produces CO2.
 
Powered by VarioS DC pump which features a pinwheel impeller, a detachable controller, high quality ceramic shaft and bearing to reduce wear and tear, and the latest variable speed flow technology for refined control, enhanced performance, energy-efficiency and safer operations.
 
Unlike the vast majority of circulation pumps which uses alternating current (AC), our VarioS pump boasts several key advantages over traditional AC pumps, namely, higher energy efficiency, safer operations at a working voltage of 24V and most notably, the variable speed control to adjust the ideal mix of air and water flow into the skimmer.
 
Note : This is not a pressure-rated pump. This pump is not for second floor applications or to feed Beckett or downdraft skimmers where constant pressure is required.
 
How it works
 
A calcium reactor is essentially a chamber full of Aragonite which is natural form of carbonate mineral, or commonly known as crushed hard corals. Aquarium water is circulated through this chamber along with carbon dioxide (CO2). The CO2 lowers the pH in the chamber to an acidic level which dissolves the carbonate minerals into the aquarium water. In addition to dissolving the carbonate minerals, this process also dissolves nearly all the minerals and trace elements the coral needed in order to grow.
 
Automated Calcium and Alkalinity supplementation – When set up properly with external controller and probe. These perimeters can be pre-set with very little monitoring and maintenance.
 
Available in 3 models – CalReact 140, CalReact 200 and CalReact 220 .
 
Technical Data
 
Calcium Reactor
 
Product: CalReact 140
Wet/Dry: Both
Diameter: 140mm
Footprint: 310/230mm
Height: 580mm
Media Capacity: 3.90L
Inlet/Outlet Size: ø6.3 mm
Tank Volume: 400-800L
Feeding Pump Suggestion: 500-800L
 
Circulation Pump
 
Model No.: VarioS 2
Wet/Dry: Both
Power: 25W
Max Head Height: 4m
Maximum Flow Rate: 3000LPH
 
Features & Benefits
 
Reverse flow and CO2 Recirculating Design
Built-in bubble counter for monitoring of CO₂ flow rate/drip rate?
Probe holder with plug*
Easy-to-remove lid – change to: Easy maintenance
Removal lid for easy maintenance
Precision effluent control valve
High quality handmade solid cast acrylic construction
Controllable and variable speed DC pump for energy-efficient and silent operations
2 years warranty for pump motor only
Does not include PH probe.