Indoor Cultivation

Basically i am posting this because i am a novice in botany and would like a few tips and tricks on the subject. I have a plant that is just over 7 weeks old and is a massive 42" tall. On the other hand i have a plant that is just under 6 weeks old and a miniscule 11-12" tall.. also i have a question on the gender of the plants. I can get some decent pictures of them if anyone can assist me with this that would be great. here are a few pics of the larger plant. I keep the temp around the 65-80 degree radius most of the time and the humidity is around 78% i also am using an 18" 510 lumens florescent tube light that is designed for plants. hopefully this info helps with you helping me!!!

Their really stretched, but their healthy, i would think about more light for those seedlings eventually...

Hasn't shown sex yet, when they do you'll see it at around the Fourth or Fifth intersect.

Male's will form little V or U shaped incaseings that will eventually harvest seeds, a female you will know rite off top cause she form a simple Cone/Cylindar shape that will eventually give off her pistills.

Search sexing or look around the FAQ up top of the website for better descriptions and pics.