Thank you so much Gina! You really helped me a lot. I'm new in the plant game and I heard that you should give the plant a rest in the water for a couple of days and that you should remove rotting roots immediately- thanks for making clear that this was a mistake. If I got it right I should leave the plant in the perlite, make sure that it isn't bleached from the grow light, keep it in a warm and humid space and just leave it alone, right? I've never worked with fungicide- could you recommend me a special kind of fungicide? Since I'm living in Germany I probably won't be able to buy the same that you have, but do you have a general recommendation? Again thanks a lot for answering my question!