Dang, those things are still kicking around? I remember visiting that aquarium a good six? seven? years back, and saw a bunch of big archers in that tank towards the end of the Australian section, to the right of the walkway; same tank with the Aussie lungs. They looked much younger back then; less...scraggly with age, I suppose; unless those I saw back then died and got replaced I'd be inclined to say they're all the same fish. One of the employees were feeding them with a stick when I saw them; they had a container with crickets they'd stick the stick in, and once a few crawled on said stick was held over the water until the fish struck at them; the blast of water was strong enough to jostle the stick and send crickets scattering, not that any of it's relevant. Cool aquarium, though.
There was a nice bookstore (Barnes & Noble, I think) across the street with a big discus tank; wonder if that's still there.