To begin with there is mad Nitrogen overdosing. The "good" plant is half a step behind and already starting to show some of the 3rd stage of signs. Don't feel bad nitrogen overdosing is the most common thing.
You also have some heat stress happening.
So the deal with that is it is a total environment compensation thing. They can handle hotter environments with more humidity.
I will put a chart below that is for hydro but just ignore the EC and pH lines...the rest is good for you. You want to stay inside the acceptable range for both temps and humidity. Also notice how it gets colder near bloom. That is becasue you want to try and simulate fall. Heat and intense light removes the THC and resin so near the end you want it cooler and dryer.
Boy I could go on and on but one step at a time.
First off you need to flush out the nitrogen or that may stunt your growth. In the worst case those clawed up leaves may yellow and fall off. That will really slow down things when you get to bloom becasue without Fan leaves nothing works.
So get yourself a 5 gallon bucket and pH it to like 6.3 then take the plants and put it in the bath tub and run the entire 5 gallons through it. That is a start. Then let it dry completely before watering again (that is standard...never water before they are dried out). I would give it probably minimum 2 weeks before going back to adding fertilizers and that is if you flushed it out clean correctly.
5 times the pot size is the rule of thumb but that is a lot of flushing and you have a minor problem not an infection. So maybe 2, 5 gallon buckets each.
In the future understand the direction on the bottle are for ideal growing conditions. Unless you have professional gear with a controlled setup or a master green thumb you are not going to be getting optimal photosynthesis. Fertilizers support photosynthesis but do not inherently help the plant grow. if you apply more fertilizers then the plant is using to keep up with the photosynthesis you get into these problems. If you had more leaves and better lights and great airflow and bla bla bla you could run as high as the bottle suggests. But you are not there so cut back...way back. Less is more and fixing a deficiency is way easier than and over dose. There is nothing you can do about those leaves. They will look sad forever now if you are lucky they will not yellow and fall off. If you are extremely lucky new fan leaves will scavenge from those instead of the soil but that is unlikely to happen.
In soil it is very easy to go all of veg without nutes. A professional grade soil program needs no nutes the entire grow.
