nutrients defficiency

Hi there, I’m very new at this. I grew these Northern Lights Feminized Auto flowering from seed and they’ve been doing great. This week the lower leaves are yellowing how can I save them? They’re about 7 weeks old.

I’ve been growing this plant for 4 months now and I was thinking about switching it to flower but I started seeing the leaves turn yellow from the edges and feel brittle. I’m feeding it nutrients so I don’t know what this could be. Any help will be appreciated. Thank you.

So everything else on my plants seems to look healthy except these leaves on the bottom turning yellow to brown from the center tip inward, what does my plant need?

The leaves on my plant are turning yellow, curling down slightly and there are some red stems. This is the first time I've grown a plant and initially it was just an experiment with a seed I found, up until this point it was growing outside without any nutrients only water just fine. However...

What’s up new to roll it up. I thought I’d seek some knowledge on watering and feeding. This topic has been bugging me and especially now that I have some babies on deck . The way I initially learned how to feed would be to feed nutrients then wait a few days and feed water going back and...

Hey guys ! i am posting this thread cause i am starting to get real struggles with some beautiful girls of mine... There are 2 plants in one big pot, both in mid-flowering and it has been a week and a half or so since some veins started to turn yellow as you can see on the pictures below. in...