With multiple types of cichlids (close to 2,000 recognized species) available, such as the African rift lake cichlid, New World cichlid, and dwarf cichlid, they come in various sizes.

A two-million-year-old rift lake so transparent that early fish researchers in the 1950s could sketch cichlids from the deck of a wooden dhow, Lake Malawi often offers 20-meter visibility near ...

The next deepest lake is also a rift lake. Located in Africa, Lake Tanganyika is 1.5 kilometers (0.93 miles) deep at its deepest point. 101 Amazing Earth Facts; ...