m new here and im desperate. im the only one in my...

hello.it is really hot there,plant doesn't like it,should have some more air movement and actions to reduce heat.that's why they are rolling up. and they are nutrient burnt.flush them please.because looks like it is getting more serious with high temps.I haven't seen a bigger problem that can ruin a well going grow than heat indoors.it makes your plant look crispy,like sick and your buds staying very fluffy and small.talking general,not about your grow.this happens when temps are too high inside the cabin.your problem is heat + nutrient burn. try to reduce heat,I don't know about your system maybe add some ventilation fans and something to cool the area.and flush your plants please .reduce amount of nutrients then.cheers

Hey man and welcome! It definitely looks like a defiency, obviously you know the pH is dropping but why? Is it circulating, if it is maybe you need more movement, another air pump perhaps? Could be light damage as well, is your lamp really 10cm away? That's very close, 30-35cm would be ideal. Also no day temps listed, is it warm enough for them, is there a 5-10c difference between day and night? Hope I could help oh and adding some calmag to your feed doesn't hurt. 🌱😁