Emergency! HELP Diagnose!

JakeA91 said:

Using Edna's Best Potting soil. Just flushed with PHd water until runoff was 6 or so. 3 gallon bucket. 2700k cfl bulbs. I have a good feeling it is from water that was too alkaline (runoff was 7+) now 6.

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The pH of the run off is simply the pH of the run off - NOT the soil!

Go up and read - then - answer my questions......Read what I say about flushing - "leeching" really.....

I think your pH is high and the reason the "flush" helped for a bit was it lowered the soil pH long enough to effect the plant.

Now that the soil is flushed. Add a Ca/Mg product (for your problem I would use G&H CALi MAGic) and being synthetic and having a pH problem - pH all in-going to 6.5 and YES that means the water only days too!

Should stop the problem.....The damage will not "repair" but, you will see the fix in the new growth and the problem will stop advancing.

You might consider the use of a good Kelp extract too!