Dendrobium Polar Fire

[Nic100]

Hi - looking for some repotting advice.

My Den Polar Fire had a bad case of root rot over the winter, but has put up 3 new growths, with roots, which is promising. I'd heard that Dens could do this but hadn't seen it.

Currently I've got it sitting in some sphag and I spray it every day.

Just wondering about when and how to pot them? Would it be ok to leave them attached and pot the whole cane, or do I run a big risk of that rotting?

Thanks!!