Katsu/Elev8 Genetics - 1st Grow Journey

OfMatter91 What's up everyone, this is my first grow. I am running 2- Sherbet Cookies from Elev8 Genetics, 1-Dracarys, & 1-Key Lime Kush from Katsu Seeds. I intend on transplanting them into 1 gallon pots in the next 2 weeks followed by a final transplant into 5 gallon fabric pots 1-2 weeks prior to flower. Just wrapping up the 1st week and the tallest girl is just shy of 3". Any tips or advice is more than welcome as Im sure I will make mistakes along the way (hopefully nothing too serious). I am only running 1-1000 watt light initially at 40" above canopy for the first 4 days from sowing seeds however I have since gradually lowered the light to 30" as I started experiencing some stretching from Sherbet Cookies (1) & Key Lime. In the last 2 days I have began to feed the girls a 1/4 of recommended dose of Big Bloom, Root Magic Myco, Silica, & Cal Mag w/ distilled water pH'd at 6.2 I intend on gradually increasing the dose as needed.