Yeah I had issues with an Mg lockout, I believe was due to too much P. Then I flushed it and all the sudden had P deficiencies on some. Tired of chasing my tail with it really.Very nice Frank. Don't know if you remember me starting a promix grow dot grow. 5 gallons of promix, 25 grams of dots. Was going beautifully until the 6th. Started seeing some yellowing on the top leaf tips. Checked runoff ec went to 10.00, err on my blue labs meter. Holy shit, lol. My root zone temp never got over 70.. live and learn..