The Blue Chocolate Smoky Angelfish (Pterophyllum scalare) is a very elegant and beautiful angelfish variety. ... The Blue Chocolate Smokey Angelfish is indigenous to several river systems in Northern South America, but virtually all specimens in the aquarium hobby have been tank-bred for generations.

The sawbwa barb, also known as the Burmese rammy nose, Asian rummynose or rummynose rasbora, is an endangered species of cyprinid fish in the monotypic genus Sawbwa. The species is endemic to Inle Lake in Myanmar. It grows to a maximum total length of 3.5 cm.

Mexican Dwarf Crayfish, or Cambarellus patzcuarensis, is as the name suggests, mini versions of the crayfish you're familiar with. Their appearance resembles a lobster; their size, a shrimp. There are a few different varieties of the Mexican Dwarf Crayfish, and they have a number of different nicknames.

Fiddler crab refers to about 100 species and subspecies of crabs from the genus Uca. They’re found along beaches and brackish (a mixture of saltwater and freshwater) waterways around the world. Male and female fiddler crabs are easily distinguished by looking at their claws. The females have small claws while the males have one distinctive large claw. This large claw, held in such a way that it resembles a fiddle (violin), is how fiddler crabs got their name. Fiddler crabs are fun to watch and fairly easy to keep as pets, with few health concerns and docile personalities. Their housing takes up minimal space, and there are many commercial foods available to provide them with a balanced diet.