Low KH From Effluent of Ca Reactor

[BlueTang<3]

Well was doing some checks today and found that my Ca is at 420 and KH is at 5.5 out of the effluent of the ca reactor. When i started the reactor 6 months ago i was getting a balanced 420 and 7dkh what am i doing wrong now? Too little of flow too much flow through reactor. Not enough media? Is there any way that the ca remains in the media but carbonates dissolve?

[whatcaneyedo]

You dont. Bring it up by using a little bit of baking soda and then maintain it there with your reactor. Use this calculator to see how much baking soda you need. http://reef.diesyst.com/chemcalc/chemcalc.html

[BlueTang<3]

ttt

[whatcaneyedo]

I see you have re-phased your question. Here is an article on how to use a calcium reactor http://reefkeeping.com/issues/2002-0...ture/index.php Scroll down to the bottom to the heading Out of Balance if you dont want to read the whole thing.

[BlueTang<3]

Thanks again for the help. I got it balanced in the tank but the effluent is still low. So instead of jamming the threads up i just modify usually.

[BlueTang<3]

Still kinda boggles me why the kh was at about 12 and the ca was at about 500 from effluent and i have changed nothing but bottles of c02 wonder if there are purer co2 sources?