Repotting question of Oncidium Twinkle

[theflowerbread]

Hi! About a week ago I got this tiny Twinkle 'White' and it grows in a 2 inch pot or so, I think in pure sphag moss. Im just not so good with growing in pure sphag so I'd like to know if I can repot in bark-sphagnum mix And when to repot.. Is the new growth big enough if I repot now? Technically the pot is still in the right size for it just not sure about roots. I'm still learning about growing oncidiums, as they are one of my fav orchid group.
And would it benefit from rooftop moss (I dunno the botanical name of it)? My other oncidium ('Sweet sugar' I believe or at least I it was sold like that) has this moss on top of the pot and seems doing well..
Also - how to water it while it is in sphag moss? For now I spray with rain water throughout and let it dry completely before to water it again, I'm so scared from oncids root rot (I've killed so many miltoniopsis in the past from root rot or drying out it too much .. though I'm not an overwaterer).
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PS. Jeez. Why it's so difficult to add a photo to the thread from mobile?







---------- Post Merged at 10:54 AM ----------

This is the "rooftop" moss I'm talking about