Trigger Fish Compatibility

Does anyone know if the Picasso Trigger (Humu Humu?) is compatible with
scarlet hermits, blue leg hermits, Astrea snails, and blue mushrooms? We
are looking for a new fish, but the old livestock has great sentimental
value.
I have read that it isn't compatible with invertebrates, but the examples
given in everything I read are for less crunchy, more meaty (and more
tasty?) inverts.

We have a 46 gallon tank with two small yellowtail damsels. The tank is
mature. There's some live rock, and the mushrooms are doing fine, etc. etc.

Any and all advice (or alternate suggestions) are appreciated.

-Greg