first timer here ... need help plants are browning and dying ... completed form

What is your experience level?
beginner

Your Equipment:
.1) Type and wattage of lights.
300 CFL from home depot with the silver bowl-like reflector and a windshield reflector surrounding the 4 plants

.2) Distance from tops?
4-8" from top of plants

.4) Is there a consistent fresh air supply?
they are in a closet

.5) Do you have an exhaust fan and a circulation fan?
6" circ fan about 2 feet above top of plants

.6) What are the bulb wattages, kelvin ratings, and schedule?

Your medium:
.7) Specific brand and type of soil, (coco, peat based soilless...) and anything you've added to it. (vermiculite, perlite, worm castings...)
just transplanted into 3 gallon black cloth pots with the miracle grow organic mix potting soil it's a blend of sphagnum peat moss, composted barf fines and natural fertilizer
(but the plants were wilting and turning brown before we repotted

.8) Size of container.
3 gallon
.9) Did you use peat pucks (or similar) to root clones or germinate seedlings?
the plants were clones and given to us ... I was told we should move from vegetative stage to flowering stage in 2 weeks

Your nutrients and water:
10) Source of water? (tap, bottled or filtered) What's it's ph before adjusting?
tap water

11) Method of checking water ph. (ph pen, test strips, aquarium test kit...)
haven't tested ph

13) Specific brand and N-P-K ratio for each bottle. List dosages (quantity per gallon) and current feeding schedule.
I believe I have the the Canna Substra Vega A/B Set ... A has 1-0-2 and B has 1-2-4

14) How often are you watering between feedings, and how much per watering?
I fertilized once (and watered daily) since we got them on Dec 28th and have just watered daily since we've transplanted them on Jan 1

15) Any additives or tea's? (Superthrive, CalMag, molasses, Mother's Earth...)
no

16) Are your ph levels stable, or do they fluctuate?
i don't know

17) What is your ingoing water's ph? ...your runoff ph?
i don't know

18) Do you foliar feed? If so, with what, how often, and at what time do you spray?

Your growroom:
19) Indoors or outdoors?
indoors

20) What size of closet, room or hut?
closet ... 2' deep x 3' wide

21) What are the temps and humidity levels while lights are on? ...With lights off?
mid to high 70s ... the cfl bulb doesn't give off much heat

22) Have you seen signs of insects in the growroom?
no

Your strain:
23) What strain are you growing? (Indica dominate or Sativa dom?)
white widow?

24) From seeds or clones?
clones

25) Is this an autoflower strain?
i don't think so

Thanks in advance for your help! I will post pictures when I get home tonight.

By the sound of it ur overwatering them u should feed every other day around 200 - 400 mls per plant I'd let the soil dry up abit leave it about 5 days and then start the watering again but remember every other day !!!

"don't wait for no man he will only want 2's"

(everything I post is copied and pasted from the Internet and complete bollocks)

Oh Yh stop the spraying of the plants as the light will dry the leaves out turn them copper with spots on the leaves basically ur drying the leaves more every day by spraying

How old are the plants?

you have to keep ph stable at around 5.5-5.8, so do invest in some sort of ph tester. even if its a color strip its better than nothing. start with that and we will go from there.