Help needed PLEASE

Lights : 2 sf2000
Soil: fox farm ocean forest
Temp: 78-83
Humidity 45-60
Water: tap ph 7.2 ppm 45
Nutes: none yet
Week: 3.5
Strain: msnl white widow autoflower

I would just like to know if my plants look healthy or if you can spot anything wrong. I really need this plants to survive this is my first grow. Pls help me out. let me know if there is anything I can change or improve all answers greatly appreciated.

Looks like rust fungi or magnesium def, also looks like its thirsty for some water

Also if those fabric pots sit on the removable floor tray in your tent and you dont have them on some form of plant caddy of something to allow the pot to be off the ground and allowed to dry out you will 100% probability get a mold problem because those pots cant stay wet trust me... it could be as simple as putting the pot onto a plastic egg crate louver, cut the side of a milk crate of the crate place under the pot, the important part is to allow air under the pot as well (not tons of clearence but take it up off the floor) to dry out the moisture yoy dont want it sitting around causing mold and algea to grow on your plant

I would lower PH to 6.1 to 6.5 range for starters. I've noticed FFOF is a heavy soil I would have added 30% perlite and promix to help with drainage. Hit them with half recommended dose of calmag. Also it might be worth adding Silica to help with defense. Just my opinion maybe someone else has other advice?