I think the girls are suffering from low potassium. I did a soil test and it showed low potassium. I have a botttle of potassium citrate/citric acid oral solution from my own illness.It states 334 mg per 5 ml. Could I supplement with this as a foliar feed or add it to my watering regimine? If yes, how much do I use? For humans it says to dilute 3-6 tsp in a glass of water. I wondered if this is what they use in potassium supplements at the hydro shop anyways....Thank you for helping out a newbie!!!
I'm not qualified to answer if you can use that or not, but a lack of K may not be your problem. There are some environmental factors to consider, along with your feeding program, medium, ph, etc. I would investigate why you are having a problem before trying to fix it with something. Good luck!