HELP PLEASE

Did u check ph to make sure it was in range? If that damage was there before u started using cal-mag it will not repair by giving cal-mag. Watch to make sure symptoms dont worsein or spread. Old damage is done... just make sure there isn't New damage. If that is new damage.... something is preventing your plant from absorbing and up taking those nutrients... I'd assume your ph level is off... or too much of another element is causing lock out. Check your ph is it in range? If so check tds ppm. Is your medium hot as fuck? If so plant is not absorbing salts and minerals due to lock out... flush your medium to reduce tds ppm of the medium. Than Feed with reduced feeding amount. Allow plant recovery time. Happy growing and stay lit fam.

Hello So it's a little difficult to give a sure opinion with the red purple light...but it almost looks a little like a phosphorus deficiency... If you're adding calmag and other nutrients though it may actually be down to your ph being out of range, it usually needs to be around 6-7 if in soil. Plus keep in mind once you fix the problem the leaves won't heal, it'll just stop spreading to more leaves.

Hmm, same question 4 days ago. Experiment was wrong was he? Maybe check the other answer. Also check your runoff ph and ec and see where its out of whack, if it isnt just dry areas in your root zone. Cheers friend