LOL; I lied to everyone.. turns out they're just gouramis.
I saw a pic of one on my boyfriend's cell phone and pegged it instantly. I think we'll still keep them anyway; I guess there are a bunch of tetras in the tank as well.
Kinda weird; this was a big-time drug house (they were into ecsasty-pill parties there) and they got shut down, leading our friends to eventually buy the house for a great price.. I guess I had better get ready to have a "standard" tropical-fish tank again, lol.