When should I repot these once rootless cattleyas?

[mtessa]

I have two cattleyas that were completely rootless, no nubs or anything. After a few weeks in their makeshift mini-greenhouse, they now developed roots. It’s currently sitting on top of sphagnum moss which I allow it to dry completely.

The first cattleya has two longer roots (around 2.75 and 1.5 inches) and a short one.


The second cattleya has more roots but they’re shorter, the longest root is a little over 1 inch.



I'm planning on potting them in medium orchiata. Should I pot them now or wait for longer and more roots?

Thank you.