Where as some fish are from Lake Tanganyika are overrated, some are actually not given enough credit. A great example of this would be any of the Goby cichlids from Lake Tanganyika.
The "Gobies" are typically thought of as being one of five species from three geneses. The list includes Spathodus marlieri, Spathodus erythrodon, Eretmodus cyanostictus, Eretmodus "cyanostictus north", and lastly Tanganicodus irsacae. All of these are mouthbrooders and all of them live in the shallow water or surge habitatFemale Eretmodus cyanostictus of the lake. Males tend to be larger than females and may contain a bit more color. Of course, none of the gobies are particularly striking when it comes to color but they sure make up for that in their comical personalities. It may be why these fish are also called "clown" cichlids in Europe. They also appear to be a bit comical in appearance as well.
All gobies have a somewhat "deflated swim bladder making them look like they "hop" across the bottom of the aquarium. They also have a snout-like head and eyes placed high on the head as well.
The Goby Cichlids by Eric Glab