how much longer

any idea how much longer I have, really starting to look Christmas. Its under LED’s at about 4/500 watts

This is my very first grow. Please help. Is this plant ready. I have a microscope and see mostly milky tricks. I guess what I'm seeing is milky can someone tell by just looking if I'm even close to done.

Hate me for the title.. it’s fair. If you stayed thanks for reading! I’ve got 3 plant, one I think is ready for harvest and the other two have longer. I’m thinking about 2-3 more weeks but I can’t find ANY info on the purple one (Icicles) and the other is ATF. I burned it but it rebounded...

Total of 10 weeks from seed. 8 weeks of Veg. 3 Days away from week 2 of flower. 1st time grower any tips or guesses on how much to go? Thanks in advance! Running on 900w viperspectra(not the best, seems to do the job) Fox Farm trio. Cal mag and some samples given.