gotta say its been interesting to watch how your little grow space has evolved ^^.

As for ferting, dont even THINK about ferting your babies yet. Those seedlings will be fine just drawing nutes from the endosperm left overs and the soil until they have 5 leaf nodes.

Also id suggest some LSTing when they get bigger, ive just started flowering my first grow and i have to say that im REALLY impressed with the lsting. Granted my girl has only been on the 12/12 light cycle for 5 or 6 days but ive got around 12 branches trying to be the top cola, im really lookin forward to seeing what kinda bud formation i get.

your girls seem to be doing well, im pullin for you man ^^.