question bout setting up a CA reactor

[Melt]

i am about to set up my CA reactor. DO I need a PH controller, I have a aquca controller with a PH funtion.. do I need a specail one for the reactor? or the tank should have on and the reactor the next...

 

[ShaunW]

You need to measure the pH of the effulent, just to get your reactor set and going. But once you have it stabilized you don't need to continuously monitor it. I just monitor my tanks pH with a controller, any changers in the tanks pH would indicate that something is going wrong with the reactor.

For a reactor to begin the process of breaking down CaCO3 to Ca and carbonate you need a pH below 7.0 inside the reactor. You have to adjust the CO2 injection rate to accommodate that. Some people do have a pH controller connected to the solenoid in case of pH changes (emergency shut off). That is another good way to go.

For the best information that I have found on Ca reactors go to JBNY's website.
http://www.cnidarianreef.com/

Click the link on the right that says "Ca reactor primer".