How long do Royal Grammas live?
Royal Grammas live about 5-8 years with good marine care. Stable water and rock shelter support a long, stress-free life.
What do Royal Grammas eat?
They are carnivores taking frozen/live foods like mysis and brine shrimp, plus quality marine pellets. The mistake is only flake; offer meaty foods for color and condition.
Tank size and water parameters
A 30-gallon (115 L) tank suits one, larger for a pair. Target 72-80°F (22-27°C), pH 8.1-8.4, specific gravity 1.020-1.025, ammonia/nitrite zero, nitrate under ~20 ppm. Provide caves and live rock.
Common mistakes with Royal Grammas
Key errors: an open tank with no caves (they stress without shelter); aggressive tank mates that bully a shy fish; two males in a small space (fight); and poor marine water quality.
Beginner mistakes to avoid
- No rockwork/caves — they need shelter or they hide and starve.
- Bullying tank mates — protect this shy species.
- Two males in a small tank — they fight; one or a mated pair.
- Poor marine water quality — keep parameters stable.