Wow thanks for all the responses! was totally expecting a slow and lukewarm response haha.
So they're about 3 times smaller than they should be... Repotting into a smaller pot should help then? I've been gardening regular plants for years now, so I'm pretty sure I can repot them without damaging them. The lighting schedule is more a matter of convenience for me, but if it'll help significantly I can adjust it. The light is about 20" above the plants.
I'm glad to hear you've got some gardening experience.
It gets tiresome explaining every little thing in fine detail.
I don't mind helping, but I think if someone wants to get into cannabis growing, they should at least know the basics.
Your light could probably come down a bunch, if it's just a fluorescent.
Don't worry about the light until it's much bigger.
Concentrate on temperature, humidity, and of course your roots.
The humidity should be close to 80%