A great video showing an Aulonocranus trying to fend off an Oreochromis that has taken an interest in his pit.

Male Aulonocranus will build pits in order to attract potential spawning females. In this video, a young Oreochromis seems to have decided he likes the pit as well. Oreochromis are a type of Tilapia and can grow quite large. Despite the larger size of the Oreochromis, the Aulonocranus seems to keep his pit when it's all over. Several other species of pit and bower builders can be seen swimming around the sandy bottom. To discuss these and other Lake Tanganyika cichlids, visit the Lake Tanganyika Species forum.


Oreochromis tanganicae. Photo by Michael K. Oliver, Ph.D. at Berlin Aqaurium​