I find just the air that's present is good enough. No point adding CO2 in a tent as it will get sucked straight out.
BTW, did you pot up, or straight into their final pots?
I find just the air that's present is good enough. No point adding CO2 in a tent as it will get sucked straight out.
Only if they were autos. Topping is common to do with photos.
That's a main lining type of training. It helps produce better yeilds in photos