Deformed plants and curled up leaves?

I have a couple plants in my tent that are acting different then the others. So a couple have some yellow spotting and curling of the leaves (the temp is never higher then 75 and humidity stays in between 45% and 57%) and my purple dream is starting to yellow? So any feed back on thoes issues would be most appropriate. Here are some pics. Last pic is all of them they look pretty good I think.

you really don't give enough details to make any suggestions...

What would cause curling up of leaves if it's not high temp? And what would cause yellowing in the purple dream? And what would cause deformation of leaves and yellow spotting? I think maybe mg deficiency or nitrogen? Not sure

Last pic is heat forsure and id say alil over watering as well whats ur medium and how often do u water?

I would say heat for the curling but I put one of my mothers in there and she is 6 inches from my 1000 watt hps and she is good no curling. I use an organic soil with out any nutes and I mix in perlite and vermiculite. And water every 3 or 4 days

Did you check for bugs

Everyday haha no bugs maybe a lil gnats but I took care of the top soil already.

Add a teaspoon of Epsom salt for every gallon of.water thats the yellow and the spots could be mag heres a handy chart i found awhile back

And how hot is it and u need good ventilation do u have a humidity temp?

Yea for sur I have a nice lil Gro1 temp and humidity. It's never hotter then 75 and the humidity is always between 45% and 57% I have a 6 inch fan on a speed control pulling air out and a 8 inch vent covered with a filer letting fresh air in.

Wow well im at a lose then man that sucks but humidity is to high thats probably not the problem but when.its that high the roots dont grow cuz the leaves take in the air idk tho maybe ur plants are root bound or something i hope u figure it out i seen ur pinkish purple stem that happened to me when i.didnt have enough good air flow but as u said that fine id google it bro like alot read a bunch of different stuff and decide for.urself