Weezy90answered grow question 6y ago Hi!
With the Ecothrive Coco Lite mix, which is pre-fertilized, they indicate that you can start feeding from day 1. Since the release in this substrate is slow, you'll be less likely to overfeed. In the feeding schedule for Sensi Coco Grow A and B, it states to give 2 ml (A+B) in week 1. Since your substrate is pre-fertilized, I would start more gently and only give half (1 ml, A+B). After that, you can gradually increase.
In the meantime, keep an eye on your little plant; if it looks okay, you're doing well; if not, adjust your nutrients a bit. If you're unsure, feel free to ask here; the growers from Growdiaries will try to help you.
I hope I could help 🙂
Good luck with growing!