Tons of Problems!! PLEASE HELP!!!

Hello, Im a newbie and have what i believe might be some problems.

First my leaves are turning yellowish brown and some of them are starting to wilt.

Second I believe i might have mold on top of my rock wool and i would like to know if its a problem and if it is could someone please help me fix it????

im attaching some photos of my leaves and my "mold" hopefully they will help show my problem.

wow, you've got nute burn, heat stress, spider mites and it looks like some sort of crazy fungus. time to cut'er down, clean up, and try again

this is the second time i put seeds in and they keep going from standing up to wilting over over nite what am i doin wrong?

what is your circulation like? does your soil have good drainage?

list what you do. soil, water, temp ,nutes I don't think its burn. looks more like def.

i have two fans one bringin it air in one pullin it out. well i germed them in a paper towel seen tap root placed em in a rapid root cube didnt water for 3 days they started growin strong. once they started sprouting and the shell was fallin off they stood strong so they were placed under t5's i went to bed just got up and they were laying over

its definitely burning, the leaves wouldnt dry out like that if it was deficient. Plus, deficiencies take longer to show then over fertilizing, so it wouldnt die over night like you described. Make sure your box is CLEAN and flush them every week to deal with the nute problem. You should really invest 30 bucks in a ppm meter. The day i got that was the day i stopped having problems with growing. Ebay has good ones for cheaap

Does anyone know a way i can fix my problems up there?? Ive been told multiple different things and dont know which way to go... as far as the nuet burn I was told you cal-mag?? is that true

for the spider mites i got some insecticide from the local garden store for and i believe thats been working

and for the fungi on top of the rockwool ive heard scrape the stuff off the top and cover em... ive also heard scrape the tops and flush them with distled water or h202....

does anyone know if these are good ideas and if not does anyone know how i can fix all that this is my first time growing and i have a lil money invested in it i dont want to just call it quits

another blog site gave me this to fill out figured i would post it to see if it helps (my pictures are at the top)

What is your experience level? (first timer, novice, experienced...)
Im a first timer

Your Equipment:
.1) Type and wattage of lights. (MH, HPS, CFL's, tube fluorescents, LED's)
Im using a 600 watt mh
.2) Distance from tops?
aprox. 2 feet
.3) Reflector type? (cool tube set-up, bat wing, enclosed reflector, bare bulb...)
not sure
.4) Is there a consistent fresh air supply?
no, but i have been opening a window to vent fresh air
.5) Do you have an exhaust fan and a circulation fan?
just an oscillating fan
.6) What are the bulb wattages, kelvin ratings, and schedule?
600 watt mh 24hrs on
Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...)
Its hydro Im using rockwool cubes
. Size of container.
4ft x 4ft
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?
dont believe so.
Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?
its tap and its around 8.5
11) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
ph drops
12) Method of adjusting water ph. (phosphoric acid, white vinegar, hydrated lime, PH Up...)
PH Up / PH down
13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.
14) How often are you watering between feedings, and how much per watering?
Watering 4 times a day.. for 15 minutes a time
15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
none
16) Are your ph levels stable, or do they fluctuate?
fluctuate
17) What is your ingoing water's ph? ...your runoff ph?
Not sure what this means
1 Do you foliar feed? If so, with what, how often, and at what time do you spray?
No i dont

Your growroom:
19) Indoors or outdoors?
Indoors
20) What size of closet, room or hut?
Room
21) What are the temps and humidity levels while lights are on? ...With lights off?
lights always on and temp is about 77 and humidity is between 40 and 50
22) Have you seen signs of insects in the growroom?
Yes i have

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?)
I have two different strains
Lifesaver - mainly indica
mendocino purps - mainly sativa
24) From seeds or clones?
Both from clones
25) Is this an autoflower strain?
not sure