They look good. Nice and short. The ligths are probably enough for now. Make sure you keep the lights as close as possible from now on to prevent stretching. I think you might be ok on the ferts as long as you didn't go putting full strength or anything. Keep an eye on them for signs of nute burn and if you see it, add fresh water a little, then bump down the nutes some.

G'luck. Keep it up. Be cool.

:rasta: RastafarI

TGF