What fertilizer should i get my seedling?

this is my 4 day old bagseed seedling and wondering if i can give it some nutes very low doasge but something to speed growth up until i get my MH.
I have mixxed up 2ml in 1L and the recommened dosage is 5ml per L of the plant starter.

Too young for nutrients now. If you start feeding them now with nutrients, it could harm the plant and slow the growth. Just water for now.

None.... Give it a couple weeks.

ok thanks guys.

that soil should be good for 3 weeks... I would start a light dose at week 3

Using unfortified soiless mix (coco) here. Even then, wait until bottom set of leaves is pretty yellow. It's an alright rule of thumb. No pro here or anything though.