First time repotting, a few questions

[Grey]

Hello! I have 5 phals, 3 of which have grown significantly and are now in need of a repot because they are top-heavy - whoops! As I've not done this before I was advised to start a new topic with all my questions, so here I am.

I'm quite keen on trying the method in the video that is stickied at the top of this forum (I have a reasonable amount of hydroton (the same as LECA) that could do with using up); does that method work for all phals or only specific hybrids or species? I also wondered if there was a recommended container size/shape for repotting phals in this way or will any glass/clear vase or cube work?

I'm curious as to what disinfectants would be suitable for the process, too, as I've not had to work with them before.

Thank you ever so much for your time, be blessed!