Leafs getting brown dry with flackes and yellowish

Those stems look purple and your leaves show necrosis . Could be a lot of things without knowing your set up and the the environment . Need more context . Or more images pictures are worth a thousand words and words are worth words . Help us help you narrow it down we want to save those plants 😁

Did you spray the plants while the light was on and still had hours of time left? Notice the problem shortly after? That can burn the leaves if so. If you spray, wait until just before lights out. If that didn't happen, did you lower the light too far recently? Yellowing on top with brown spots could be from light burn among many other things. Could be lockout of an immobile nutrient. Yellowing from the top down. Check your ph and check your tds. Like others said, we can only guess with no diary. Just throwing some options out there for you to consider. Best of luck! Happy Growing!

Hay bro It gives too much water and there are problems with pH ole, the light should be a little closer, at how many cm do you control the light ?

No diary added about it.. Mate, your asking ppl to guess.

So if you go check out my page I started getting brown spots on my leaves and had to use process of illumination. First are you feeding if so what(salt based,organic)? Second , what kind of soil? What kind of water do you use (tap,r/o,distilled) what's your ph? What is the ph of your soil? For instance me I'm using half pro-mix half ocean forest with added perlite, I am using lotus nutes (salt based) I know what I'm putting in mine like you do so I checked my runoff ph and ec found out that I had way too much coming out so i figured out that either 1 my ph pen needed calibrated or I was in a lockout situation. So I flushed my plant with ph-ed water and allowed a quarter of what I put in to come out. After doing that I had results as early as the next morning. Now they weren't no where back to normal but if your like me I could tell my lady was on the right track. But if you haven't given any cal-mag I would deff. Give some as calcium helps transport nutrients that the plant needs so if it is lacking it could cause numerous other deff. Also the yellowing tells me that it is lacking nitrogen also. So you deff are in some sort of lockout issue either the soil ph or mine i let it dry out too much and caused a build up like I said and after flushing it allowed the roots to obtain nutrients again and I went back to half strength nutrients again. Hope this helps ya and good luck

Lot going on in the pics. NO diary hard to pin point it. Looks like your nutrition is way off, and might because by bad PH or a buildup. They also look like they are stretching to much as the light is not strong enough or to far away. They also maybe in a pot that's to small for them. Hard to tell from the pics as its not in focus but they look tiney for the size of the plant.