Please help !!! pic´s

I got 2 1/2 weeks old NL seedlings in a bubbler that i just built recently and so far so good they are still growing fast every day but now it seems like all the new growth on them is turning yellow almost fade to white! I check my water every day my ph is 6.0 and i started out with a EC at 0.6 im now at EC 0.8 and slowly building it up... I was using GHE flora series nutriants until today and i just changed to Atami hydro nutriants in hope for better success. My root system looks good all rooted well and white no sign of root rot or anything maybe its a nutriant burn or nutriant deficiency? i just can´t figure out what´s happening my temp is at 24-celsius during lights on and 40-moisture.
Please if someone out there has had the same problem and found a cure for it please let me know or if someone with a good experience.
Its getting more and more yellowish every day!

Here are some pic´s...

check out this https://www.rollitup.org/general-marijuana-growing/1469-marijuana-plant-problems-cures.html
under zinc (figure 18 ).

I'd say looks pretty much like it.

I'd also up the ph a bit, but i'm pretty new here.

Thanks ill look into it! but i think i have an Iron deficiency but not sure... anyone with any ideas what is happening to my plants?

deficience problem, looks like needs more nutes.

It looks like a sulfur deficiency i added a couple of drops of super vit to my res and a quart per liter of blooming nutrients to pump my sulfur level up a bit if thats not working for me i defenetly have a iron deficience.
But if anybody out there has had the same problem please share what solution is best to prevent it from happening.