Planted Tank Guru
Join Date: Jun 2004
Location: Baton Rouge, LA
Increasing light will increase CO2 consumption by plants.
But it will not increase CO2 loss to the atmosphere, and I figure in most tanks, that's where most of the CO2 actually goes.
So increasing lights may result in a surprisingly insignificant drop in CO2 level.
Having an advance plan is great, but let your drop checker show you what's really going on.