Deflasking advice

[xFl]

Hi everyone! Recently bought a flask of Phal. Mini Mark 'Holm', first time deflasking.

I soaked them in a mild bleach and soap solution, then rinsed with clear water - I'm wondering if this was mold growing on the roots in the flask?

I also potted them up in my regular phal bark mix, with just a bit more sphag that I would use for my mature plants - is this okay?

Keeping them in a makeshift enclosure - not airtight but temperature is around 21-25c, humidity around 70%

Any advice and thoughts would be appreciated!