exactly nutrient lockout!! that's why I posted in my previous post that when the problem persisted for a few weeks I started flushing with distilled water and then after that ran light dose feeding again in the distilled water... during just water flush I checked runoff ph and ppms and I had a ph of 6.7 and 800ppm(again this is runoff of distilled water that was reading 30ppm going in) Would that indicate enough shit in soil to cause lockout??