Plant unhealthy

Well I just finished below and thought of what might be the cause. a clog... Make sure your pots are draining since your pots don't have air stones they will drown if you get a clog and the water does not drain out. IWS Pro, Flood and Drain, You cant over water in hydro. Did you do a full water change when you notice this issue. Always a first step for hydro. They all look droopy so I'm guessing you might have some root rot going on. Anything above 20 for water temp you can run into rot. Feeding once per day? So you are only flooding and draining once per day that seems a bit low depending on how much coco you have in the mix. I would increase to 3x per day. I would do the following 1. Check PH make sure it is within your 5.5-6.5 range 2. Test the EC/PPM and see if it is going up or down from what you have mixed to know if your over/under feeding. 3. See if your plants perk up 1h after you flood/drain. If so then Increase flood and drain to at least 2x per day. 4. From what I looked up botanicare pro nutrients are a salt based nutrient and not living. So doing a sterilization can ward off root rot. add 5ml/L of hydrogen peroxide(3%) to your water. If you don't have any air stones in your reservoir then I would also do that as it can help with root rot.