Worrying leave colors

Hello, I’m growing for my first time, I have an indoor setup. I’m looking for someone with enough experience that can hopefully help me identify my problem, I’ve looked all over youtube and the internet and I think I’ve got a clue but I’m not sure, first of it is in soil, I made sure to get soil that would have enough nutes for 2-3weeks for the plants life, I have 3 of them going at the moment, they all suffered from a bit of nutrient deficiency as they are at 6 weeks of veg and just got nutes for their first time today, although, about a week and a half ago 1 of my plants started turning purple on the edges of the leaves and curling upwards, but the center of the plant is still green and it is still growing but not nearly as fast as it should, as they are all 6 weeks and none of them are over 3 inches in hight and have no mare than theire 3rd set of serrated leaves. I have made sure my ph was good this whole time but took a bit to get the nutes. If someone can help thatd be amazing, thank you truly for the time!

Hi @Liftedlegend, welcome to the community!
That deficiency you talk about could be the issue with those purple leaves and curling upwards.
If you share your Growlog’s link, I can take a look.

To share your Growlog:

  • In the Grow with Jane app, tap on the plant’s name
  • Tap on the Growlog icon at the top right corner and Share
  • Copy the link here