FanLeaves are turning black from the inside to outside. It's looking like a starting problem. Please help me recognize this 🙂 first picture (leaf on the bottom shows it best)
I think it was cold rain and it was just enough it stressed them a bit. Usually black or purple is a sign of too chilly. If roots get too cold it can do this as well. Like a dwc set up. My bet from what I know is cold. Only time I see this unless it is fading.
If the night temps get too cold it will cause plants to turn a black or purple color. If they got cold then that was the problem. If so they will recover but leaves won't fix themselves. Good luck 🌱🌱🌱
Then it would be from the rain and it drying out. You shouldn't have anything to worry about. Just watch out for mold or mildew, but if its drying up everything should be ok.