The CR Twin Tech is a new automatic calcium reactor from Deltec with a lot of bells and whistles, like all of them. At first look the Cr-Twin Tech is a lot for the eyes to take in, but there’s a nice serving of German engineering with each and every piece.
The first big difference between the CR Twin Tech and other automatic calcium reactors is the inclusion of an extra tube which is separate from the mixing chamber itself. This allows the water level to remain more stable even as the CO2 mixing chamber has aggressive water flow moving through it.
Some other innovative features include a special venting tube on the topside of the main calcium dissolving chamber, pH control for more precise control of dissolution rate and a high quality solenoid valve specially chosen for this application. The system itself is not fed by a peristaltic pump – even if very precise tends to drift in accuracy – but instead uses a tiny controllable DC feed pump with a small flowmeter in order to very finely control the feed rate to the CR Twin Tech.
All of these bells and whistles are connected to a central controller to make the solenoid valve, recirculation pump, feed pump and float switch all work together in perfect harmony. The body itself is made with Deltec’s renowned craftsmanship and uses schedule 80 pipe, with union valves everywhere, and very handy quick disconnect flange lids for easy access to both the reactor body and gassing chamber.
At this point we can’t even fathom what else you’d want from an automatic calcium reactor, except maybe a wireless connection and companion smartphone app but that would be reaching. Priced at 1200€ or around $1400 this level of sophisticated calcium reactor automation is going to appeal to the diehard control freaks and reef tanks with very demanding calcium and carbonate needs.