Have you ever noticed when you take clones outside the humid environment they begin to wilt because their root mass are small and it's a harsher climate.
Yeah 2700k is more on the red spectrum which is closer to the natural sunlight during summer solstice (flowering) outdoors have you tryed these bulbs out yet is the bulb more yellow/red or a soft white.
Yeah you can get a small Sea of Green type grow going with that remember though that plants require less lighting during vegative growth as compared to flowering were you will need to upgrade to either more CFLs or a HPS fixture what spectrum of light are those CFLs 6500k or 2700k
Go with Dutch Master's Reverse which stops pollination on intersex plants or just pluck them and salvage what you can she will still harvest a decent yield.
No as long it's not those clear plastic ones that exposé light to roots I always use paper cup cause it's easier to take them apart at my outdoor sites.
It's used as a top layer of mulch how has nobody post this yet as it keeps moisture from dissipating faster from your soil top and less heat to your root system.
Plant 1 & 2 are fine but 3 & 4 were dwarfed sometime in their life from either too much heat/too little heat,root bounb,over/under watering and over feeding.
So start by taking that foil down as foil is not good for reflection and can distribute light unevenly so your actually losing more light start by painting the inside of the closet a flat or glossy this will increase the reflection using foil you have a reflection percent 70%-75% with a flat...