I have since been able to get my hands on some Hemichromis elongatus. I've had the only 3 I was able to get for about a year now. One committed suicide, and the other two I've had to separate because of aggression. I just introduced both of them into a new tank, and low and behold they ended up pairing. I've had one spawn so far, however I was only able to pull a couple of eggs before they ate the rest. Here's to hoping!