Micro nutrient recovery

That’s assuming you hit it with exactly what it needed at exactly the right pH and whatnot..

I mean it’s gonna help to some extent within a day or two.. taken up thru the roots to be used.. but that won’t become evident from the look of the plant physically probably for a week give or take a few days I’d say. Certain damage to leaves won’t ever heal too if it’s dead tissue but that doesn’t look to be the case for what you’re dealing with

Thanks for the quick response gmslave

Could be up to 2 weeks in soils, couple of days in hydroponics.