Mr black thumb
Well-Known Member
Get on Amazon you can get a pH meter and 7.0 calibration fluid for $25 bucks it's one of the best investments.I am gonna buy the oh test strips so i have an idea of my ph and what should i do i guess wait a week or so i just changed resevior and uptook my nutrients 10ml eqch one but only 2 plants of the 4 have the spots other 2 are healthy