As far as i know, lots people told me that i can you bubble water that i buy from the supermarket like selztzer will do the work...giving Co2 all day to the plants. Thast the cheapest way to give a little extra Co2 to the plants.
Lots of pro growers said that i need Co2 for my plants during the flowering stage, some said they dont even bother with them...whast is the true behind it? Co2 gives you better buds? or what does it do? And also if you cant afford a Co2 tank system, can you use Seltzer water spraying direct to...