Leafe point turning light green help

Hey there fellas, I’m running into some possible problems in one of my plants and it’s leaves are turning a bit light green in the points and I am asking for some advice from anyone who’s in a good will to help me!
I’m dropping my settings below:

Phase: Growing (14 days since sprouted first leafes)

Strains: 2
1 Auto Skunk 47
1 Do Si Dos 33

Size of growing area:
2meters high x 80cm x 1 meter
6.74ft high x 7.49ft x3.37ft

Lights: 1 HPS 600watts bulb
running on a Lumatek digital variable ballast at 250watts (300watts measured)

Light schedule: 20/4
Temperature: 26C

Soil mix:
Coco
Perlite
Compo Pro-Line Green 2 Professional Substract
Percentage about: 15/35/50
Inside Aeropot’s 11lt
Mixed by hands, gloves protected

Nutrients:
Clonex Mist Organic Root Stimulator
BAC Organic Grow

Water ph used in watering 6.3

So, i have the two strains side by side, the auto skunk 47 looks perfect , healthy and growing pretty ,but the do si dos 33 started to show some of the points of the leafes turning light green, as it grows it turns more darker but the points still light green..
I initially was thinking that it could be caused by the clonex mist root stimulator as it’s a foliar spray it could possibly be caused by droplets in the leaves that dryed in that areas and kinda burned or something like that but I gave them once and stopped because I was thinking it might be the cause.. but nothing changed by stopping..
what I find strange is that the other plant is treated exactly equally and with the same parameters, both were planted in the same day, same soil, same nutrient, same treatment , and it’s perfectly healthy..
Also , i started giving them Organic Grow from BAC nutrients a week ago, in a quantity a bit above what the brand suggests , and all the supposed benefic effects are being noticed since, but it doesn’t affect or solve the problem I’m having with the do si dos 33 as it remains the same way.. the other one looks perfectly healthy..

Please share some thoughts please!
P.s: sorry for having the hps turned on in
Thanks in advance!
cheers!

I have some good guess the usual nutes. And a horrible one-is that mosaicism? A viroid. Or blistering? Critter,foliar application etc.
Either way the colors are washed out in the picture and without the contrast of chlorosis to green under normal white light its hard to accurately say.

Snoopy808 said:

I have some good guess the usual nutes. And a horrible one-is that mosaicism? A viroid. Or blistering? Critter,foliar application etc.
Either way the colors are washed out in the picture and without the contrast of chlorosis to green under normal white light its hard to accurately say.

Click to expand...

thanks for the answer!
im hoping it’s not the virus.. I find it strange because it’s the first plantation in this place, all materials are clean and new, no used stuf ,the other plant is healthy and the procedure is the same, I’m skipping the nutes for a while to see if changes are noticed..
Anyways I’m dropping here 2 pics of it in normal white lights following what you said!
Please share your toughts , cheers!