Trust me, I know first hand how ph thats off by a small ammount, can become a serious problem if left unchecked.
I just bought a new ph pen this week, cost $150 Canadian,
worth every penny, tells me ph,tds & water temp.
Suspectelite Reviewed by Suspectelite on . Outdoor WhiteRhino Grow 2oo7 what up yall this is my outdoor WhiteRhino grow 3 weeks into bud any comments or suggestions? Rating: 5