What's wrong with my leaves??

I have 2 mother plants I will be getting clones off soon which will be around 2 months old in about a week or so. Let me introduce you to Cheesiel (left) and Pakistan Valley (right). The leaves on my Cheesiel plant seem to be turning this yellowish color at the tips of the newest growth. Can anybody tell me what does that indicate??. I will really appreciate it. Thanks RIU.

Looks like the start of nute burn keep an eye on it maybe back of your nutes if your giving any? But that's my opinion wait to get more besides the little nute burn they look healthy

Girls looking beautiful.
Just keep doing what you're doing.

the plants look healthy but i think it is the very early sign of a nitrogen deficiency or it could be nothing..
read the nitrogen part from *unlike a magnesium....
https://www.rollitup.org/marijuana-plant-problems/488004-guide-nutrient-deficiency-toxicity.html
happy growing

Thanks for the helpful answers. I will keep doing what im doing and back up off the nutes a little because I did increase the nute amount. So thanks for the advice, +rep for everyone.