Looking good!
Jonah's Aquarium also carries some native stream fish. Their stocklist changes all the time, so if there's a particular species you want, just let them know and they might be able to get it for you. Looks like they have some Lythrurus shiners and some madtoms right now, any of which would work well in your tank.
I'm not sure if it came up before, but there are several native stream mosses, many closely related to willow moss. You'll probably have to collect these yourself.
Jonah's Aquarium also carries some native stream fish. Their stocklist changes all the time, so if there's a particular species you want, just let them know and they might be able to get it for you. Looks like they have some Lythrurus shiners and some madtoms right now, any of which would work well in your tank.
I'm not sure if it came up before, but there are several native stream mosses, many closely related to willow moss. You'll probably have to collect these yourself.