Are they looking healthy? Sprouted Nov 1st

1st pic: OG kush Auto 2nd: Wedding Cake Auto 3rd: Blackberry Moonrocks Auto

Grown in coco/tuff mix maybe 2-3% Perlite Added some organic fertilizer to the medium on OCT26th to let it work.. Seeds were in cups and transplanted about a week ago, added some worm castings..

3x 100w Floodlights 6500k , height about 12-14 inches (btw measurements in the pics are in CM)

I didn’t PH until 2 days ago… 6«-»6.5 Temps range between 20-26C or ~(68-78F)

And humidity as shows on my meter between 30-60, I guess it should be higher

Should I give them some 3-7-5 fertilizer? Or any other tips?