C CTW420 Member Jun 21, 2010 #1 how long should i let the co2 sit befor venting out? Im running at .5 for 14 min in 3.4x3.4x6.4 grow tent i have maybe 30 plants in it at 2 and a half weeks old.
how long should i let the co2 sit befor venting out? Im running at .5 for 14 min in 3.4x3.4x6.4 grow tent i have maybe 30 plants in it at 2 and a half weeks old.
