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Unread 01/07/2011, 12:55 PM   #31
pencil3
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Join Date: Aug 2006
Posts: 282
Happens on my tank as well, as PH increases/decreases due to the soda lime my alkalinity would bounce all over. What I did is install a T with a ball valve after the CO2 scrubber to allow some ambient air to mix in so the PH never jumps up to 8.4 or higher when the soda lime is changed out. In addition I use a Apex controller for my 2 part dosing. I figured out what the alk/calcium consumption was at the different PH levels and then programmed it so the correct amount is added based off the PH of the tank.


Quote:
Originally Posted by HiggyBrew View Post
My alk has been steady at 132 ppm for weeks, suddenly it dropped 12 ppm the day after starting the CO2 scrubber. Why is this? Could the pH rise have caused the corals to jump start their growth? That's the only thing that I can think of right now...

Any ideas?
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Bluecoast:

I would think the humidity would shorten the life of the soda lime.

I would think it best to remove the odor (and the nasty molecules that cause it) from the tank.



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