the best mulch would be straw, which stays dryer, and not wood chips.
I need a garden fairy on my shoulder in all daylight hours. When I bought the bagged medium for my containers, I read somewhere that I should sift the compost. I have a tendency to go with any wind that blows re garden advice (I'm finally getting over that) so I actually sifted bag after bag of compost, and was shocked at what sifted out. It felt wasteful to throw it away, so I used it as mulch. Typically, I use pine needles which I have in abundance.
Some sing the praises of wood chips as mulch, some leaves, some this, some that, and now..."straw stays drier than wood chips". See why I need a garden fairy?! I could just turn to my little overworked garden fairy and ask..."So who's right?" Another thing I'd ask her is if I should throw away the contents of the container where the choanephora showed up.
In lieu of a GF, I have access to the thoughts, experience, beliefs I find on this garden forum and your input will stay in my head for
me to consider going forward. Which is exactly why I'm here! So thank you.