Yesterday I noticed yellowing along the leaf edge -- very pronounced under the LED light I have. From what I know, that indicates potassium. The plant is not quite dry enough to water -- maybe in another day or so. Should I water/feed anyway? It's still in veg -- growing in FFOF. I'm using General Organics 'Go Box' nutes -- at least two of the supplemental products are soluble potash, so maybe I could go a little heavier on those? Or, use one of those in a foliar solution? Thanks for your help -- I just got the poor thing back from the brink due to my rookie mistakes.