Blackcap Basslet
Gramma melacara
A deep-reef beauty that swims upside-down along underwater cliff faces.

About
The blackcap basslet (Gramma melacara) is a small but visually bold fish from the deeper reef zones of the Western Atlantic, including the Bahamas and the Caribbean coast of Central America. Its most recognizable feature is the sharply contrasting color pattern: a deep violet-purple body capped by a jet-black crown that runs from the forehead back through the dorsal area. In the wild, this species lives on nearly vertical rock faces and deep drop-offs beyond the outer reef, typically at depths below 30 meters, where it often swims upside-down along cave ceilings and overhangs. A behavior it carries straight into aquarium life. When startled, it ducks into crevices quickly, so a tank with plenty of rockwork and hiding spots is essential. It's a solitary species by nature, and while it can coexist with peaceful tankmates, it may become territorial toward other grammas or similarly shaped fish. Compared to its shallower-water relative the royal gramma, this fish tends to command a higher price due to the collection depths involved. That said, it adapts well to captive life and has even been bred in captivity, making it a rewarding choice for the intermediate saltwater keeper who can meet its need for structure and territory.
Similar species
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From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Blackcap Basslet get?
- The Blackcap Basslet reaches about 2.5–3" as an adult.
- What size tank does the Blackcap Basslet need?
- A minimum of 20 gallons is recommended for the Blackcap Basslet.
- What water parameters does the Blackcap Basslet need?
- The Blackcap Basslet does best with a temperature of 72–82°F, a pH of 8–8.4.
- Is the Blackcap Basslet aggressive?
- The Blackcap Basslet is semi-aggressive. It can work in a community with careful tankmate choices and enough space.
- What does the Blackcap Basslet eat?
- The Blackcap Basslet is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Blackcap Basslet live?
- With good care, the Blackcap Basslet typically lives 2-3 years.
- Is the Blackcap Basslet reef safe?
- The Blackcap Basslet is generally considered reef safe.