this is the right nutrient ml you'd wanna use so you dont burn your seedlings like I did a bit. I was using 2ml for all three of those but that's too much! if you really want to be safe go with .5ml when there super small then when they get some leafs going bump up to 1ml for each person gallon. I use maybe a quarter of a gallon when watering in solo cups. I use a water bottle and when the coco starts getting a little dry (everyone day) I will use about a half or little less of what I have in my filled water bottle for water. that goes for each seedling. when it seems there may be a pH or nute issue then flush it out.( water with plain ph corrected water.) all plants are at different stages and times right now.
super lemon Haze germination: day 8
jalapeno mild pepper germination: day 13
jalapeno mild pepper seedlings: day 4
green crack #2 seedling :day 8
Tangerine Dream seedling: day 16
Ak-47 germination: day 8
Ak-47 seedlings #1,#3,#4: day 13