I just got a Juniper Bonsai (about 12 years of age). I keep it indoors, water it reasonably, and let it have some sun, but... The moss and soil that came with it seems to now have some fluffy white moldy mildewy... stuff among it. Not a ton, but noticeable. Sometimes it looks like little fluff pods from some other plant, but it doesn't have seeds, just spider-web-like messiness. Should I be concerned? How can I remove it? Will it grow to harm the moss or tree, or block up my little garden? I live in upstate New York right now, and it is quite autumn (if that's useful).
I Reeeally don't want to have to re-pot it... And I can't safely leave it outside.
Thanks for whatever help you can give, Scott, et al.