The Planted Tank Forum - View Single Post - Help: Where is the CO2 from my DIY?
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post #4 of (permalink) Old 03-09-2013, 04:20 PM
Planted Member
Join Date: Nov 2010
Location: Portland, Me.
Posts: 255
Try the drop checker. I run 2 HOB filters on my 38-gal and I'm not having any trouble keeping the drop checker in the green zone with DIY CO2. I only need two 2-liter bottles for the CO2, but I do have a glass cover on the tank.
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