My personal favorite has to be the Lepediolamprologus Kendalli. I have a group of them and the dominant males are unbelievable. They are in the 5 1/2" range and are starting to put on some girth. I do however have a weakness as well for Calvus/Comps and my dominan Orange Comp in my 125 is striking. He is a nice orange with jet black lips and black ventral fins and a trace of black outlining his dorsal fin and tail. (A keeper) I also love the Cylindricus.