My buddy Richard Wershe said you provided a lack of grow and environmental information for him to be helpful... But i see some crispy leaves! How are the temps?
Temp is around 20-25 celsius, led 200 w Lumatek, Fertilizer canna pk,water ph 6, 5, humidity about 50-70,
why? thats not how plants grow. they need NPK calcium, magnesium, sulfur, copper, molybdenum, iron, boron, manganese and even sodium and chlorine. you cant grow healthy plants with just pk and epsom salts.
yeah you may find this hard to believe but even in flowering stage you need all these nutrients to grow healthy plants.
thx for added info, ignorant guess- looks like the girls recently had two heavy doses of nutes and burned. The leaf droop in the back could be a combined overwatering / saturation issue as well. Did you get excited when they started to flower and maybe stepped on the metaphorical gas pedal too much?
She's looking over watered, let's the pots dry out for a 2days and see if they start to perk back up. The lime color and the burns make me think your PH is off.