Love the long lung, Li. And alliteration.
My only experience is with african lungs, which pretty much can't be kept with anything (that you don't want bites out of). Clearly your Aussie fits in well. Anyone with experience with SA lungs?
These are amazing fish...live for 70+ years...and are pretty easy to care for...
I re-homed my 2+ foot african lung before leaving sacramento...
Matt