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bertoni · 01/30/2018, 07:10 PM

Aeration could bring more carbon dioxide into the system, which will lower the pH. The limewater and photosynthesis both raise pH by consuming carbon dioxide, so more aeration sometimes helps in limiting the effect.

01/30/2018, 07:10 PM	#5
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	Aeration could bring more carbon dioxide into the system, which will lower the pH. The limewater and photosynthesis both raise pH by consuming carbon dioxide, so more aeration sometimes helps in limiting the effect. __________________ Jonathan Bertoni