Dont transplant yet they would not be root bound and you will disturb the root system stressing them even more. Reduce watering to start with, raise the light. As for the retarded one it was a dud seed and the others arn't much better. Next time have a more reliable batch of seed or clones.
Ive seen this before blistered look on the leaves and i think its overfeeding or too close to the light. It slows growth but the plant can grow out of the issue.
Ugly fucker isnt it?
Endless amount of issues, overwatering, underfeeding and worst of all 95 watt fluro giving you too much stem and lacking vigor.
Next grow try a different medium, strain and much better lighting.
No its only good for pathogen control in hydro systems.
The problem u have is nute burn, all tips burnt followed by burn marks on leaves. Adjust feeding down.
Its ok, try to get it back in the sun if you can.
45deg is ok for a few hours a day(outdoor only) if its hardened already and that is still a lot more energy for the plant than 12 hours of cfls.
Cfls are ok for veg.
Don't use neem oil outdoor, when the sun hits the leaves they burn up because they have oil on them. Just let them go now , see what you get and learn from this mistake.
No its just dust and the hair is a bit skinny to confirm the plant a female. Also when early hairs appear they are usually coming out of a resin pod in pairs eg
They will die if you dont get them back inside under the light they were under. You need to cool the room and raise the lights. Re locating and putting them out in the hot sun has shocked them especially the young ones, it was the worst thing you could have done .
Back inside and get off your...