i had the same problem. I took each plant in the cup into the bathtub and lightly rinsed the roots off as much as possible. I then flushed and re-filled res with 6.0 PH water and added 1/2 recommended nutes and now 2 weeks later, the problem is gone.
I read about the same problem on another forum.He had the same problem after swittching to bloom nutes.He also observed some type of parasite in the stem of his plant.Never did see an update post as to wether he figured out what caused this or resolved the issue.
I have read that Stealth Hydro nutes stain roots pink. Roseman said so on another thread but I can't seem to find it. I wouldn't worry too much about it as long as roots and plants look healthy otherwise.
my roots turned pink when i used bud blood. i'm guessing stealth hydro is similar. your roots look real healthy, though. i wouldn't do anything different.
my roots turned pink when i used bud blood. i'm guessing stealth hydro is similar. your roots look real healthy, though. i wouldn't do anything different.