First grow update (questions about water)and pictures

Well it's been 3 days since I put these tiny girls in the medium after they had germinated in a damp paper towel. These are seeds from ILGM and are supposed to be white widow autoflower. This is my first ever grow. Right now they are sitting in 5 gallon fabric pots. The red one is in kelloggs organic potting mix with perlite that I added. The yellow one is in a fifty fifty mix of kelloggs with ace hardware brand potting mix with perlite and vermiculite added. The blue is 100% ace brand potting mix with perlite and vermiculite added with a quarter cup of epsoma organic slow release fertilizer 5-2-6 I believe it's the citrus bag. Also the yellow has a quarter cup as well the kelloggs has none. I'm doing this as a bit of an experiment. Any way I've been watering with non ph'ed water so far about a shot glass or two per plant. Only when the soil gets dry. I'm kind of scared of over watering them as they are extremely small. What do you guys think? Also they are under FL right now as to not fry them with my led.

Hi my friend i hope you are well, if u have any transparent containers that are tall u could place ontop to help with increasing the height of the little ones, 1 to 2 days or so shouldnt be too much time with it on usually use it when germinating straight into the soil no tissue paper. Id feed tbem every 2 days like i do with my new seedlings. Look out for the main stem, the soil wont tell you when its dry pal cos roots havent developed. Soil drys when it drys for now but u should ensure u feed often rather than less to prevent any life threatening issues. Starving them of water isnt gonna give them the best of starts.