Northern Light [First grow]

First time growing, really excited :) Growing in a small setup with just 60 cm up to the light, so this will be interesting. Took 3 days to germinate, and waited too long to turn on the light, so it stretched a lot. I let it stay 3 more days in the Jiffy pellet until roots started showing at the bottom of the pellet. Then I transplanted it into a 3-liter fabric pot with a 70% coco and 30% perlite mix. I also started using GHE FloraSeries nutes aiming for around 250ppm. Also, I have my light at around 250 PPFD.