Thanks everyone! Yes, I am going to be looking to find these juvies new homes.
They are fairly aggressive and not recommended to be kept with any shelldwellers. Their profile says that they will take babies out of the shells and have been known to kill the female shellies to get to the fry. I don't know how they would do with Tropheus, but they are carnivores, so I'm thinking the different diet requirements and the aggression would make them not the best choice.
I keep mine as a single species. I made the mistake of following a "cookie-cutter" stocking list for a 20 gallon long tank that said you could keep one pair of leleupis with one pair of Julies and a trio of shellies. I purchased a few of each and waited for them to pair off. That cookie-cutter should have mentioned that all Hell would break loose when they reached breeding age and formed pairs. So I had to move the Julies and shellies to a separate tank. That combination probably would have worked better in a larger tank like a 55 gallon.
Breeding sized males are very intolerant of other males, so in a small tank you should only keep one. The pair are good parents and do fine with the fry. This is a nice change from what I'm used to with my Malawis, who eat their babies!