Also once you sort this out...your gonna want to get rid of your water leafs..the water leafs are leafs that are most of the time the biggest...very important never to trim the top quarter of your plant. the top quarter of your plant has sun leafs that are identical to water leafs... dont mess...
oh 105 isnt bad...when its the heat of the day put your finger in the soil or even better stick a thermometer and see..i would do these things before anything...during the day does the leaves stand up, or are they slowtching a bit.
sometimes they will die right away like one of my mothers a couple months back...it was about 5 ft tall....plants can get heatstroke fast..im thinking your using to much nutrients too.. start watering morning..if it is getting to hot you probably have to water more too..try going to lowes and...
sorry man but its to hard to say..get rid of that aluminum...thats a good way to mess your plant up...i would say either to much mag. or iron..but im leaning towards a disease...if you smoke around your plant i would stop too...dam it also look like maybe a tye of mold...sorry i have to pass on...
If your having this problem on just one plant then remove that plant from the room...see it sounds to me like it isnt bad yet..it will take time for the s-mites to kill the plant depending on the size of the plant..