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tmz · 12/30/2010, 06:16 PM

Hi Gary,
The inside outside aeration ph test will tell you if it's worth it to bring in outside air which may/may not contain less CO2 than your house air. In any case it will contain some(388ppm CO2 in the atmosphere). The CO2 scrubber should purge it out to near 0 ppm,I believe.

12/30/2010, 06:16 PM	#73
tmz ReefKeeping Mag staff Join Date: Apr 2006 Location: West Seneca NY Posts: 27,691	Hi Gary, The inside outside aeration ph test will tell you if it's worth it to bring in outside air which may/may not contain less CO2 than your house air. In any case it will contain some(388ppm CO2 in the atmosphere). The CO2 scrubber should purge it out to near 0 ppm,I believe. __________________ Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals.