I’m also starting my first attempt at growing indoors, 8’X10’ room with a 7’ ceiling, windowless, reflective material on all walls.
I have five Girl Scout Cookies that sprouted 12 days ago, in 8oz cups under CFLs.
I used commercial Miracle Grow potting soil mixed with Miracle Grow garden soil and added some of my own compost, PH6.0. All five plants are healthy and growing well.
I am watering with rain water, PH6.5-7.0 every 2-3 days and that seems to be working well.
In another week I plan to put them under 400W MH and transplant to 3 gallon pots using the same soil mixture.
I have been maintaining a temp of 77F and humidity at 45% (goes up or down a bit every day).
My question is: When should I start adding nutrients, how often and what ratio?
Is feeding through the leaves better than adding it to the soil?