What's new

Having a P and K lockout on a few plants, others ok

I was running a GH micro/bloom 6/9 1g epsom at 5.8 in coco with tap. Temps are all good. RH is very low. EC at 1.5. One of my bubblegums is showing a combo P/K deficiency. Spotting as well as browning occuring down the midline of the leaf. It has advanced to a rusting on some leaves. I tried to correct this by switching to 6/12 1/4g epsom and my other bubblegums responded very well, but one has not. At the same time a plant of another strain has begun to show browning along the midline of a few leaves after the switch and it has me very perplexed. I have some RO I can grab from work so I was thinking of flushing with that.

Am I experiencing a lockout of some kind? Anyone ever experience this?
 
Top