What's wrong with these ?

I'm not sure what's wrong with my plants? Thinking might be pH but not too sure. They are Northern Lights grown indoor small discreet setup.

Any thoughts?
Thanks guys.

are you just watering your whole plant with nuted water?... like leaves an all?

soil yes, leaves and everything once a day.

If you're spraying your plants with nuted water that's not a good idea, it tends to overnute them and droplets on the leves tend to consintrate light and burn them.

soil is missing a complement of trace minerals

personally, i would go fetch some clear water from a stream or river, start watering with that instead of tap water until you see some improvement

your soil has McDonald's syndrome. no substance