I know it has to much magnesium. I thought I'd added to much to the R/O water just over a week ago. The crusty leafs, I believe are caused by that.

However that is starting to fade after a lite flush. Issue still is the Nitrate being extra low. Everything else being just a tad high or right on.

I'd prefer NOT to flush again, removing what Nutes ARE still in their proper range. I'd have to believe the tiny bit of extra magnesium has been used up by now.

I'll see what I have after work tonight, and check on the nutes (fish emulsion) today.

BTW,.. I haven't really been using any nutes. The soil was (as always) a bit rich to start with. Adding nutes up to this point has historically burned them. So all I've added was the CalMag to the R/O.