AmnZhzanswered grow question 5 years ago Hi mate its 100 % root rot, happened to me many times. If you live in a hot climate country dwc is a problem. I live in a country with high temps and always no matter what I did these months that was the result, you need a cooler. If heat is not the case then you dont have enough oxygen in the water. What you can do. In my experience there are not many things to be done here. H2O2 wont do shit, the best option is cut the infected roots and start a soilless system with piranha, tarantula voodo juice or similar stuff. I always used Advanced Nutrients. Hope was helpfull.