The Planted Tank Forum - View Single Post - DIY CO2 ,does airstone need to be on bottom of tank
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post #3 of (permalink) Old 12-14-2012, 12:45 AM
Algae Grower
Join Date: Mar 2006
Location: Monterey Park, CA
Posts: 126
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Usually people put it at the bottom of the tank just because that way the bubbles have a longer chance to dissolve into your tank before reaching the top and releasing more CO2 into the atmosphere (wasted)
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