The leaves on one of my girls was very droopy (tou...

Hi @Gibby_tha_3rd! I see you're checking your pH levels, but do you also check your EC levels? This is absolutely necessary for coco, since this substrate is not able to buffer/regulate those levels, you should feed with a perfectly adjusted solution, and slowly increase your EC levels. Also, I noticed you only water the 'inner circle' around the plant, but you should do the opposite and water the 'outside border' of the container, this will force roots to search for water and spread. It's hard to over-water with coco, in my opinion you should give them more water, so you can have a slight drain. Hope this helps, keep us up-to-date and happy growing! 👊

Temperatures are fine, so is pH. If you are going to use coco (or hydro for that mater) then an EC/PPM meter is a must, until you tart using one you will be playing a guessing game with the nute amount, where a few more drops can be too much, specially early on when you use low amounts of water. Early on your EC should be around 0,5 (250 PPM) focusing primarily on cal/mag, later during veg you slowly add veg nutes, increasing the EC to around 1.0 to 1.2 EC (500 to 600 PPM), on flowering stage, keep using veg nutes until the end of the stretch and start adding bloom nutes, your EC should be between 1.4 to 1.8 EC ( 700 to 900 PPM). Since you post no EC or PPM info, I assume you are blindly trying to adjust your nutes. The wilting / droopy leaves might have something to do with over watering, at this point I would give the plants 1 liter of water, that should last a week, forcing the plant to develop a strong root system. Forcing the plant to hunt for water will give you a healthy and strong root system.