The Blackcap Basslet, Gramma melacara, is commonly known as the Blackcap Gramma. The Blackcap Basslet features a dazzling purple body with a jet black diagonal cap to give a striking look to your saltwater aquarium. The Blackcap Basslet prefers to be kept in aquariums with dim lights. This Basslet is often known as a deep water dweller, so it is best to be kept in an aquarium with controlled lighting. Even though the Blackcap Basslet is likely to be shy especially with noisy and mischievous tank mates, it makes a good choice for a community fish tank. The Blackcap Basslet can grow up to 4 inches in size, and should be kept in a tank no smaller than 30 gallons. The Blackcap Basslet is a threat for invertebrates that are smaller in size like Isopods, Amphipods and Copepods. The Blackcap Basslet needs a saltwater tank with plenty of rock caves in order to hide itself when stressed or threatened. The Blackcap Basslet is semi-aggressive as it is not compatible with other fishes of same species but quite compatible with the fishes that belong to other species. Therefor should not be kept with other Basslets. The Blackcap Basslet can be kept either singly or in true mated pairs. If pairing, it is best to add both Basslets at the same time, to ensure bonding. The Blackcap Basslet should be fed a diet of meaty foods that will consist of mysis shrimp, crustacean flesh, marine fish flakes, pellet and other quality frozen preparations for its continued good health. These Basslets will thrive in temperatures of 72-78?? F and a pH of 8.1-8.4.