Pretty close that today July 19th the girls are 77 Days old. The Last Day of Week 6 in Flower. Man they should be bigger, bummer. Wedding Cake and White Widow have nice budlets and are the furthest along, the other's are lagging behind in development, another bummer. Some are a little overfed with a little tip burn and some are a little too yellow seemingly underfed. I think they look good considering they are in coco and are only getting water once a day. Watering is an issue since the well runs out depending how high the water table is a final bummer. Man I need to go roll to put on a happy face, definitely not a bummer. Good growing All💪
Looks like issues in the root zone. Test your runoff. I would bet the ph is in the 4.5-5 range. This will affect the uptake of nutrients the plants need in flower.
Thanks Kush-queen, DoctorGreenThumb, and StaresAtPlants for your answers. Seems like the leaves come from both top and middle of plant. Run off is 5.4, 5.5, & 5.7 for the different trays. PH going in is 6.0. Plants get watered with RO water every night, I run 6.0 PH, temp 23 EC between 05 - 1 or 500 - 1000. Get plenty of runoff.