If you don't want to spring for a meter you can get indicator instead, it's like $10 for a years supply!

It is more time consuming and not as precise, but it's an option if you're CHEAP!
stinkyattic Reviewed by stinkyattic on . Would radical PH... Lets just say I dont have a PH meter so I never know what it is, and in the plants dark time(night) there is a little light leakage, would that make my plants come out to be males? I use nutes(weak solution) for 3 of my plants, tap water (that has been sitting for a week) for my sprouts. My medium is soil. I have 150w hps for the three plants, 2-100w sun cfl's for the sprouts. 1 plant is about 3 wks ahead of the other 2 plants, so I cut the top of the plant where the new growth is to stunt its Rating: 5