Thanks, guys.
I'm looking to import from Oliver Lucanus in a month or two. I might pick up a few more if I can get sizing right. I think they're still a bit too small to accurately sex, but I suspect they're both females: both have white edging on the caudal and dorsal. As of right now, only one is showing the pitch black body and red belly.
In tank pics are going to be tough, but I'll work on them after they settle in a bit more. They're pretty shy, but they also seem fairly inquisitive. When I've been sitting in front of the tank checking to make sure everything was okay, the one sitting at the front of the glass was just starring back at me. When I opened the lid before, one started to ascend the water column. I'll wait for tomorrow to try feeding them... hopefully, they'll accept fresh/frozen stuff right away.