Eeek, First Deflasking Emergency

[Rowangreen]

I've just brought home some flasks, had hoped I had a few days to sort myself out, but it looks like I have to deflask one quick as I have mold growth! The tub is in a sealed bag and I guess it must have got a nick in it at some point in my journeying Handholding apreciated!

Flask is Pabstia jugosa. I had hoped to leave it a few weeks as I can't really see pseudobulbs and I'd thought it best to leave until they'd formed, though the leaves are just touching the top of the pot. Currently the mold colony is not touching the plants, but the size it is I expect it could fill the pot in a day.

My available supplies are sphagnum moss, perlite, chunky bark and Orchid Focus bark and coconut mix (I guess I could break down some bits of the last two, but small bark is not instantly available). I was thinking of using a mix of moss and perlite: would that drain a bit better than moss on it's own?