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 be found at multiple locations in slow moving waters of the Amazon River and its tributaries. In the wild P. leopoldi feeds mostly on small insects and plant matter found in the detritus which collects on the bottom.
In the aquarium Pterophyllum leopoldi need a fair amount of cover in the form of plants and driftwood to recreate their natural environment. Tank raised specimens do well on quality flakes, but wild specimens might be picky and require live or frozen foods. P. leopoldi isn't as common in the hobby as P. scalare, but possible to find. Males can be aggressive toward other males, especially when breeding. Tankmates should also be docile and not "nippy" as P. leopoldi's fins are long and delicate. For more information on P. leopoldi visit the South American Cichlids forum.