Seedling is 7 days since it broke through the dirt.
I have the FF trio on hand but can not find current concrete answers as to when to start and how the schedule should be amended with autos.
Some suggest start week 2 some say week 3.
Everything says start with half or less dose.
Seedling is bubblegum auto, growing in Happy Frog. In a grow tent 18 inches under Mars Hydro. So far only misted the dirt with water spray bottle.
I’m a newbie, but from what I understand about autos, they don’t need a lot of fert, especially in the beginning. Not to mention that the pot is very decent size so that little lady would need to spread through it and use the nutes within before needing some juice. I guess it depends on the soil nute content that you started with. Otherwise, just play it by sight. You’ll notice when she slows down or when she has symptoms of needing to be fed. Good luck!
That plant is wayyy to young for nutes. I would let it establish itself more. That soil should feed for about 2-4 weeks before you beed any kind of nutes @GetRytGrows is right. The plant will show you when its hungry. But id give it a couple more weeks and go from there.
Generally Fox Farm soil is good for 30 to 45 days as brand new soil. I grow exclusively with there FFOF and all nutrients including the Dirty Dozen, Kelp me , Kelp you and Wholly Mackerel. 
