The Planted Tank Forum - View Single Post - ~Explanation of how a drop checker works~
View Single Post
Old 05-09-2011, 03:11 AM   #5
Hoppy
Planted Tank Guru
 
Hoppy's Avatar
 
PTrader: (74/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 18,363
Default

The green range could indicate as little as 20 ppm, since each of us has a different perception of what "green" is, and the ppm of CO2 is very sensitive to that color being exactly "right". And, the green range could indicate as much as 45 ppm, for the same reason. Not all plants react the same to various CO2 concentrations, so what is needed to get a vigorous response can be different for different plants.
__________________
Hoppy
Hoppy is online now   Reply With Quote