Let me add my thoughts on this.
Everyday my CO2
kicks on @ 10:00 and then turns off @ 20:00. I have a drop checker installed with certified 4 KH
When the CO2
turns off at night, the drop checker is green which indicates 30 PPM CO2
saturated in my water column. In the morning when/before the CO2
kicks in, the drop checker is still green.
This means that when I stop adding CO2
in the tank that (1) the plants stop consuming the CO2
and (2) I also do not have any loss of CO2
throughout the night.
The point to this: The amount of CO2
that I inject is what my plants consume. So my plants are consuming 2.5 BPS of CO2
during the time the lights are on.
Points to consider:
My drop checker turns blue when I do PWC
's and then returns to green within an hour.
When I lowered my lighting down to 2 WPG
, the drop checker turned yellow at the end of the first day. This means my plants were not consuming as much CO2
as before and it was totally expected. I had to lower it to 1 - 1.5 BPS.
I completely dissolve my CO2
. So, unlike misting, I do not have any loss of CO2
directly to the atmosphere.