Phalaenopsis Orchids in Hydroton Clay

Hi everyone, I have just repotted my orchids and have decided to try out Hydroton Clay, as I ve been hearing a lot of good things about it. I know its not advisable to repot while your orchids are in bloom, but I was just really worried about the roots rotting in the sphagnum moss that I got them in. Hopefully my phals like it I will be updating their progress in a week. Thanks for watching