Mag def again? Pics

I ran into mag deficiency about a week, week and a half ago. Thought it was mites at first, then got cal/mg and the problem went away super quick on all 3 of my plants. Now out of nowhere its starting to have little brown/black dots starting again. I was hoping to get a second opinion, I upped the dose of nutes for her ( i hope) from 155 to 345 ppm. You think by adding more cal/mg and other nutes (GH Grow Micro Bloom, as well as GH Rapid Start & GH CALiMAGic) it will remedy this?

When dealing with mg def do you have to continually add a higher dose of mg/cal to prevent?

Also the strain pictured is Bodhi Dream lotus. The yellowing and tip burn is from the def a week ago. The little spots which is on 3 or 4 leaves now is the first sign

Currently veggin em under 4 bulb t5 216 watt 24/7
80 F 50% Humidity
good air flow with two fans

here two other pics, anyone??



Now I just found this, on a diff plant. Shes a afghan kush x white widow. Looks like a bug went to town on one set of leaves, no other sets have been affected. I looked closely and could not find anything to indicate a bug/mite. Maybe just bad genetics? It is a freebie i got in the mail with the tude.

Are you using reverse osmosis water? Tap water doesn't usually need to be treated. I was told there is no reason to add cal/mag in veg, and especially given the small plant, I wouldn't think you need to add a bunch to it. I thought I needed this stuff but I think it caused more problems than it cured for me. I grow in soil though so know that. There is no cal/mag in the fertilizer already? I would look more into making sure the PH is right and that they are sufficiently watered and not overwatered. To me that rockwool looks dry.