BC - I was tempted by A. sp "maracaibo" as well, but ruled it out given the OP is in Oz which has restricted import laws ... and A. sp "maracaibo" isn't on their import list as it is too 'new' to the hobby. Where as the green acara was popular back in the 70's, and the Aussies still have some cool fish down there from then that have dropped out of the hobby in North America. But that's just a hunch.