Hi, Stormcooker
I'm am using the same mix on the cal mag. The last grow NL's solved the problem. This grow is orange bud FEM and they seem to be real picky. I got the same on the leaves on 3 out 6. They are going strong well 2 almost died at the begining but they are coming back strong. I'm using 3 part GH, B-52, cal-mag plus, a little H202. Just went to 12/12 and added bud blood with res change. I would like to know if you can OD on cal-mag?? or if a little too much is bad ??