Too much nutrients?

hey there theDoctor, sorry but i have to disagree with everyone here . It's no potassium because K symptoms are splotchy and colorful, that's not what's going on here. Nitrogen issues do not cause leafiness that's light and genetics, nitrogen would be too green leafs or lock outs that would look different. Your problem is root zone related, specifically there was a bit of overwatering that caused the wet dry cycle to not get dry enough which then led to standard water mold issues affecting the root zone. Nothing simpler to fix, just stop overwatering and then fix the roots. The problem roots you can fix by adding a chelation agent for example my favorite : humic acid, you can also add beneficial bacteria but they take longer to work. Anyway, i hope this helps ! 🚀