Chocolate

The Chocolate shrimp belongs to the Neocaridina family of shrimp from Taiwan, and has a rich, brown, chocolatey colored shell. This interesting color is achieved by darkening Red Cherry shrimp, which could eventually get to Black Rose shrimp with selecting breeding.
Chocolate shrimp of a higher grade will typically have a deep, dark chocolate color. The contrast can make them look very similar to cocoa beans, hence the name. Solid, dark legs are another indicator of belonging to a higher grade.