Hey guys , iv recently had problems with temps and water . temps being far too high and the water being too hard ( i believe ) i now have the temps pretty much sorted although they do fall out of the required ranged now and then . 16'c to 33'c sometimes. My plants were yellowing and very limp so i then changed to bottled water and they have done very well with this turning green quite quickly . but i still have a slow growth problem ?? Now either my temps are really affecting it or its the air circulation. I am growing in a grow tent inside a shed . the shed being around 2.5m2 and the tent 1.2 sq. I have intake and outake fans on but they are both pulling air from the shed not from outside (fresh air) could this be the problem ? The idea of me not having fresh air is because the window is in a public area so didnt want to attract attention . what would you suggest peeps ? Thanks