Pistils turning brown at 3 weeks into Flower

[Gl1tch]

@chester

runoff EC measured 3.22.

This is likely your culprit I like to shoot for around 2mS on the high end. Many things can cause early pistil death, but that’s all I see that stands out. Keep an eye on it for the next few days to see if the problem continues to spread or if flushing fixed it.