Hey,
My 2c is go slow in this 1st stage.
It is very easy to overwater and completely stall a plant at this stage.
You don't need nutrients for the 1st 2 to 3 weeks.
I make sure my soil is moist when I plant my seedling and for the 1st 2 weeks I don't water at all and they never droop from lack of moisture.
An important thing to remember with watering is that roots like air just as much as water.
No air means anaerobic and stinky and rot, like a bog.