In situation like that I would foliar feed. In fact when I notice any sort of deficiency I usually foliar feed straight away and then check PH, nutes etc. It gets the plant recovering quicker IMO.In my case adding mag won't help until I get the pH under control.
Well finnally someone with some fantastic advice! PH first, then fix deficiencies.Epsom salt contains a lot of magnesium and some use it as a part of their nute regiment. Do you know why you are mag deficient? I ask because I am curently mag deficient as well but mine is caused by ongoing pH issues... In my case adding mag won't help until I get the pH under control. My nutes have plenty, the plants are just currently unable to use them. Hope this helps. Maybe someone with more experience will come along soon to help you out.
Thanks emmpey. That was going to be my next step if I couldn't figure out why the pH was so erratic. I had multiple problems causing the extreme pH shifts. I think I got it under control yesterday. The plants are happy today, eating/drinking well again, and should start greening back up soon.In situation like that I would foliar feed. In fact when I notice any sort of deficiency I usually foliar feed straight away and then check PH, nutes etc. It gets the plant recovering quicker IMO.