The Planted Tank Forum - View Single Post - Help: Where is the CO2 from my DIY?
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post #11 of (permalink) Old 04-02-2013, 02:51 PM
Planted Member
Join Date: Nov 2010
Location: Portland, Me.
Posts: 255
It is winter, and you live in Canada. When your house stays closed up for long periods, CO2 levels in your house can build up and affect the pH of your tanks. Next semi-warm day, try opening some windows for a little while.
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