Dwc leaf problems

Strain is pineapple chunk femenised
Temps/rh: 70-80 degrees/50-70%rh
Dwc
Led lights 24 in away
Emerald harvest nutes( gave 75% of recommended doses on feeding schedule for it)
About 21 days old from sprout
So my problem is that my fan leaves are starting to curl under from the edges and my leaves seem to be a darker green than others. I’m assuming it may be nitrogen toxicity

Another plant in coco with the same environment and nutes though with this one 100% doses of nutes is having slow growth and the leaves have this yellowish spotting tint to it; almost like faded in a way on all the leaves... the discoloring is not drastic but you can tell something is up( I have two in coco the same age same environment same feeding and the other is doing very well I don’t understand

Pics?

Really tough to offer any help without pics buddy...sorry. You can get different phenotypes of the exact same strain, so it's not uncommon to have one plant having nute issues and another that isn't.

whats your pH running? That yellowish spotting thing sounds like the beginnings of a magnesium deficiency.

I suspect you may be running too low on the pH.

I know it’s hard to tell without pics but paranoia won’t let me post em and I’m running 6.0 in my coco and 5.8 in dwc

if your in the US... post them pics. Youi'll be fine

Can you elaborate

My Pineapple chunks are darker green than the rest. I like the smell and taste but I can't get them to stop hermy ing on me. So.....don't stress 'em

It was to much nutes I’ve pulled back and newer leaves have been better