by native do you mean native to around here, or native to south east asia?
when I first started out, I had this strict idea that everything had to be exactly like the crab's native environment... but let go of it after finding how large most of the native fish were, how difficult brackish tanks were, and how few plants from the region were available. If I could, I'd have a 200 gallon paludarium with crabs, skippers, and archers, and it would be a no brainer how to set it up... but I can't, and right now I'm stuck with a 15 gallon.
that's why the glass fish are attractive. they're small, cheap, hardy, and generally from the same region... maybe not a perfect choice, but one I can work with.