The Royal Gramma, Gramma loreto, has a bisecting color patter with its front half purple and its back half a bright orange or yellow. Like other Basslets they should not be housed with another Basslets to avoid aggression, but can be kept safely and peacefully in a reef tank with other tank mates. They are very hardy making them easy to acclimate and care for.

Corals and larger invertebrates like shrimp are safe from this Basslet, though they will consume very small invertebrates such as amphipods , isopods and copepods. Diet should include a variety of live or frozen mysis shrimp and vitamin enriched brine shrimp 1-2 times daily.