Hi there Luxus, you have N toxicity, you can see this from the "too green" and shiny aspect of the leafs. If you rinsed the medium that's okay, now reduce the N or NPK that you're giving and follow a plain water x 2 then feed schedule , so : plain water plain water the feed (approx 10 days) plain water plain water the feed, get it? Just you do this you can save it. Hope this helps ! 🚀