How's It and good evening,
you have certainly got a lot more knowledge and understanding about caring for your girls and don't make basic errors like putting plants on a cold floor and over watering.
I just saw that picture of the poor droopy girl and offered my experience, because the environment is the most obvious thing to question first. Get the roots happy, don't drown them and most of these problems and lock outs will cure themselves.
Cold temperatures can also shock plants causing wilting and slowed growth.
Maintaining comfortable 22°C in the root zone will make your plants grow with no undesired side effects of temperature fluctuations.
https://www.cannabisculture.com/content/2002/08/02/2565/When the air temperature remains at 72 degrees and the root zone is cool, which often happens when containers are placed on a cold floor, the roots do not work as efficiently as they do at a higher temperature.
Conversely, cool air temperatures can be ameliorated using warm RZT.
Root zone temperatures are equally important as chemical reactions happen at a faster rate in optimal temperatures. These reactions are the mineral uptake from the nutrients we give plants for use in photosynthesis. The better and faster these reactions occur, the quicker and more abundant food the plant will have. The ideal root zone temp for cannabis plants is around 75°F and should always be about 5 degrees cooler than the ambient temperature.
They go from being flooded after watering to dry between waterings and from cold at night to warm in the day—the living soil is constantly trying to adapt to this ever-changing environment and so the plant roots do not function as efficiently as they could.
If root zone environments are maintained consistently in the comfort zone, however, plants actually become more photosynthetically efficient—using all the energy they produce to focus on efficient growth and reproduction. As the plants use energy more efficiently, they begin to process nutrients better and they use light and water more efficiently as well, with less 'stretching.' In short, the plants can now utilize resources at the level of their needs, not in excess to overcompensate for stress.