help sick plant deficiency

Hey everyone I'm new here and new to growing... I have been trying to identify what my plants are dealing with but I just can't seem to nail it down.. im watering between 6.3-6.6ph organic soil with worm castings and vermiculite.. I use the micro/grow/bloom perfect ph nutrients... this...

Flood and drain temps 86% co2 1250 ppm. ph 5.9 humidity is low 40 water ppm 580 just lowered it to 380 day 3 of flower I didn’t use no veg just bloom gh powder they starting to curl in and new growth yellowing

Girls are 2 weeks old first time so I don't what this could be there are spots on the leafs looks like it might be a nute deficiency any help would be great I don't want to lose my girls