For cichlid hobbyists that collect stamps or even if you are not a stamp collector, cichlids depicted on stamps are fun and interesting. As expected, several African nations put out a variety of stamps with cichlid artwork (just google "cichlid stamps"). Most stamps depict species local to...

Pterophyllum leopoldi. Photo by Hodowlaniec . (CC BY-SA 3.0) One of the three recognized angelfish species, Pterophyllum leopoldi is also the smallest. Reaching no more than a couple inches in length, P. leopoldi can also be the most aggressive of the relatively docile genus. The species can...