Yep.....ph last....always. Before ANYTHING touches your precious hydro babies you should know the ph. And it WILL change......warmer water, different day, the way the plant grows......so check and adjust it often. It's worth the effort for sure.
Weedhound Reviewed by Weedhound on . PH Levels What is the acceptable PH range in Hydro? Searching PH gives me no results... Rating: 5