It is never advised to repot a plant that is in stress. With that said, you need to repot those plants that are in stress. If you have drain holes in your dixie cups (as you should), flush with lots and lots of water then just repot as normal into a soil that isn't too hot. Don't try to shake...
Oh shit, I just reread your post and you are adding nutes to the water for week old seedlings? KNOCK IT OFF! Just straight water for the first 2-3 weeks if you're in soil.
Ok, so with the new seeds; soak them in reverse osmosis water overnight and plant them the next day. About a quarter inch under the soil and make sure your soil PH is between 6.0 and 6.5. I like to use a couple CFL bulbs a few inches from the soil to keep them warm and cast some softer light on...
You could use a garage door track. Just the track would work for a smaller light but if you have heavier lights then you could use the side rails from a garage door as well. Pretty easy to control the pauses at the end that way too.
That's what she said.
Where did you get the seeds? Have they frozen and thawed a few times or anything like that? Sounds like weak genetics for sure but since they're what you have... try to keep your ph closer to 6.3 not 5.5 and don't water every day.
I have used stove hoods before and they work very well. I would rewire for Metal Halide or HPS and put a carbon filter in-line in the exhaust. I let the fan run on low all the time and it kicks on to high when the lights turn on. Good score for a dumpster dive!
I set up a similarly sized room for a friend of mine. I used a 400 watt MH light mounted in an old stove hood that vented out to a carbon filter before outside. We set up some CFLs on clamp lights to use for supplemental side lighting when the top lighting wasn't penetrating the canopy...
If it's healthy but growing more lateral than vertical, jump for joy. It's nothing to complain about if a plant gets wide before tall and if it's healthy with no current problems, why not?
If I weren't going to be around to monitor everything every day, I would go with an organic supersoil and set up an automatic watering system. You wouldn't have to worry about monitoring nute runoff and it won't be such a leap from growing outdoors.
Cloning a clone will eventually cause genetic drift. I was a horticultural sciences major in college and one of my botany experiments was researching the genetic drift of cuttings taken from successive clones. I used coleus as the test plant as it is easy to grow and cuttings root quickly.
The...