New Grower DWC Automazar Problems with yellowing leaves.. Pictures. someone help!!

[Getgrowingson]

So i started these babies 2 weeks ago and all has been good except one thing. The new leaves on one plant are starting to turn yellow.. from what looks like the stem out (on the leaf) background is ph was a little high around 6.2 so i brought it down to 5.8 and when i got home it was at 5.6 and the new leaf started to show yellow or lighter green spots on the new leaves.... im using Kind by Botanicaire line for nutes with Liquid Karma, Aquashield, Root Excelerator and Rhizotonic at a PPM on bluelabs truncheon at 500ppm. It says its supposed to have Cal Mag in it so i havent been using any cal mag and am thinking maybe that is whats going on BUT am not really sure to be honest. Im using a 600W MH Blue Hortiluxe at about 2.5 Feet away room temps at 24C and water temps at 69-72 F lol dont ask my meter is in F and the other is in C. Anyway on to pics......Someone please help!! Im not concerned about the cotyledons that have rusty looking spots because it was from foliar spray when they were young under the MH. (Lesson learned)

 

[DWCocha]

Hi Ggs :Sharing One:looks like cal mag deff & slight underfeed bud ... make a fresh res with a small dose of calmag added 1st & set the PPM to 600 & you should be good :thumbs: if all is growing well a good rule of thumb is up feed by 100 PPM every week you do a res change.If you can keep PH @ 5.8 or just below in veg & 5.8 - 6.0 in bloom is good

 

[Getgrowingson]

Update 2X AutoMazar and Vertigo and day 40ish

Thanks dude i have some new pics at about day 40.....also the picture outside of the tent is a Vertigo from paradise.... quick flowerer.... waaaay ahead of my mazars and they are the same age... The problems with the Mazars were definately cal mag... went and got some and am at full strength cal mag now because i use RO water. All the new growth is perfect but the old affected leaves are really starting to brown and curl. Should I cut these leaves off completely?Trim the dead off? or let them eat away at them and just leave it alone? I know your the resident pro DWC guy helping everyone out so was hoping you would have some solid advice. These pics are now actually about 5 days old so they are a little larger then this (mazars) and vertigo is more "buddy"