whats going on here

So like the title says whats goin on with the plants? Im new to growing and im wondering if its like a nutrient deficiency with them? The 3 plants in question are the same strain, ethos grandpas cookies #6 x zwag #23. The other plant (bacio gelato) seems to be having no problems as far as I...

Hi... New here and I'm having an issue in my DWC. I am at 5.8 pH and was running my ec at 2.5 and just flipped them 2 days ago and changed the nute mix as well. The leaves started looking like the pic... I freaked a bit and reset the nutes at 1/4 strength and my ec is now .9. is this nute burn...