The TurboKlone machine is basically the same concept as my aeroponics bucket. I’ve used the Clonex gel in my cloning bucket for nearly 15 years, and I’ve never had rot issues. In fact, I’ve mentioned my 100% success rate using my bucket, Clonex, GH 3 part Flora series (& a bit of CalMag Plus).
Before I started using Clonex, I tried a couple of powders. I wasn’t satisfied with the results, so I tried the Clonex rooting gel - and never looked back.