Thanx mate!
I never thought that can I make CO2 by myself. I found a tutorial and it seems very easy. I read that we use baking yeast to make CO2 but it has about 3 weeks life, then you have to do another bottle. My question is, when I use it? I mean the bottle must be always in the grow room producing CO2 and every 3 week I have to renew the bottle? It is OK for my plants to feed always with CO2?
I also have high temp in my grow room, higher than recommended for plants, like you, sometimes up to 37o Celsius!
Yesterday I cut 3 plants! Two Super Skunk Feminized and the one Northern Light Feminized are grow enough to make me happy!! Now waiting them to dry and then test !