Most do 30 mins to 1 hour before lights on and off. Good CO2 concentration will already be in water column when the light kicks in.
Timimg Co2
I have a solenoid on my regulator and have been timing my Co2 for the same 9 hours I have my lights on. I figure dose the Co2 while the lights are on and the plants are going to absorb it. Anyone see any problems with this amount of time? Pushing about 3-4 bps.
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Precisely the reason I posted this question... Thank you very much for your comment =)
I do it like you describe, connected to the lights. Why not 30 min before and after?
When the lights kick on, plants don't IMMEDIATELY start to photosynthesize. It's a process that starts slowly. I think. Plus, over night plants actually emit CO2 due to respiration. Depending on other things like surface agitation etc there might be a bit of an accumulation during the nighttime, something to feed on for your plants when they wake up and CO2 injection is just starting to kick in.
Just a different opinion... I know some think algae hell breaks lose if the CO2 level isn't up to max when lights kick in... just depends on your particular tank and circumstances.
When the lights kick on, plants don't IMMEDIATELY start to photosynthesize. It's a process that starts slowly. I think. Plus, over night plants actually emit CO2 due to respiration. Depending on other things like surface agitation etc there might be a bit of an accumulation during the nighttime, something to feed on for your plants when they wake up and CO2 injection is just starting to kick in.
Just a different opinion... I know some think algae hell breaks lose if the CO2 level isn't up to max when lights kick in... just depends on your particular tank and circumstances.
1 - 4 of 4 Posts
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