Well my k def was actually a result of fert buildup in the medium.....locking out the K because believe me I had a TON of K in my nute solution. But since you have said that you have done a flush I am less inclined to think that in your situtation now.....espically after discovering you are actually doing the opposite treatment we talked about.

I think you using 3/4 RO water has caused an MG def amongst other shortages and I'm pretty sure that is your problem. That's why I suggested going back to your regular tap water.....and was rather surprised when you mentioned that you were now using even MORE RO water.....but still no CalMag instead of going back to your tap water. You may have squeezed by with enough calcium and mag etc in your tap water.....but you certainly aren't going to get any in your RO water so I'm sort of wondering why you didn't start CalMag when you went to RO water....it's pretty standard to do so and most people who use RO and DONT use CalMAg WILL run into problems.
Weedhound Reviewed by Weedhound on . Hydro Nute Problem with pics... Help Needed I've been trying to figure out what type of problem I have here. The bubbler hold 4 plants (2 master kush, 1 blueberry, 1 super skunk). Two of the four plants have the same issue (one MK and the super skunk), they other 2 seem okay, maybe slight P def. Leaf pics are from MK, they are the tallest. I also have 2 MKs in dirt in same room with no problems at all. Here are some details: -indoor -hydroponic -hydroton -DWC system type -Water is 1/2 RO and 1/2 tap -Water pH is 5.8 (+/- .1 to Rating: 5