Gramma loreto is a very popular fish in the aquarium trade known as the royal gramma.
The fish begins as a dark purple starting at the head which fades mid-body to yellow at the tail. The royal gramma will also have a small black spot on the front of the dorsal fin. The royal gramma resembles the false gramma (Pseudochromis paccagnellae), with the two main differences between the two being that the false gramma has clear fins and does not fade, but rather has a distinct change in colour. Royal gramma averages slightly over 8 cm and has been tank bred.
The royal gramma is a planktivore, eating mostly zooplankton and crustaceans. They will also accept frozen and meaty foods such as brine shrimp and mysid shrimp in the wild
Their natural range covers the Bahamas, Venezuela, and the Lesser Antilles. They are carnivorous and eat most meat-based diets.
In the aquarium
Due to their relatively peaceful nature, diet and small size, the royal gramma is considered an ideal inhabitant for most reef aquariums containing coral and other invertebrates. Notwithstanding this general statement, royal grammas can become aggressive towards tank-mates when kept in smaller nano reef tanks. Minimum suggested tank size is 20 gallons. The royal gramma should not be kept with its own kind unless in a formed male-female pair. It should also not be kept with larger, aggressive fish. They are, however, resistant to most diseases and make very good beginner fish.
In the film Finding Nemo the character Gurgle (whose name is never mentioned) is a royal gramma.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article Royal gramma