Timelapse First Grow

This is my first grow ever, I'm excited! I've read and studied a lot but I fill I don't know what I'm doing: I guess the rest will come with experience. I also like photography so I'll do some timelapses (1s = ~1.5h in real life) during the seedling/vegetation stage, I hope you enjoy them! Log: 18/10/18 - Seed plantation, 1 day after Canada's legalization, to celebrate! :) 21 - Seed Germination 25 - I thought that the stem elongation was a sign that they were developing well! However, I noticed that that happens when they are receiving few light and I realized that I wasn't using my lights in their full power - I fixed that and the vertical growing stopped. 26 - First big mistake: I noticed that the tap root perforated the bottom of the seed pellet so I tried to transplant it to a bigger pot. I was really careful, but the pellet just broke in half, taking the tap root with it, what a disaster. I hope that the plant won't be impaired. 28 - I noticed that the leaves never turned green and remained in a light yellow, I've read that several reasons can be to blame but I think it could be the lights, since I moved them too close at day 25. I'm testing this variable to see if there are improvements (update: day 29 - leaves are looking greener! this seemed to work)