[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [APD] CO2 and pH control



Gordon and Susan Watkins wrote:
> The pH reading is coming from the sump of my trickle filter using a 
> Milwaukee controller. Right now, with CO2 running, it shows 8.1. I 
> checked another tank which has been set up continuously for over 25 
> years and, using the same electrode, it showed 8.9. What else could 
> account for the discrepancy?

You could have gravel or decorations which are buffering your pH. Things 
like shells, coral, limestone, marble, etc. will do that.

I intended to ask what is the pH of the tap water after it has sat out 
for awhile (not in an aquarium).

-- 
Jerry Baker
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo/aquatic-plants