đ Royal Gramma (Gramma loreto)
The Royal Gramma is a Caribbean gem known for its stunning bicolor appearance - vivid purple front half transitioning to bright yellow rear. Hardy, peaceful, and appropriately sized for most reef tanks, it's often recommended as one of the best beginner marine fish.
đ Quick Facts
| Scientific Name | Gramma loreto |
|---|---|
| Adult Size | 3 inches (7.5 cm) |
| Minimum Tank | 30 gallons (115 liters) |
| Temperament | Peaceful (territorial toward similar fish) |
| Reef Safe | Yes |
| Difficulty | Beginner |
| Lifespan | 5-6 years |
| Origin | Caribbean |
đ Tank Requirements
- Tank Size: 30 gallons minimum
- Aquascape: Caves and overhangs essential
- Territory: Needs a "home" cave to claim
Water Parameters
| Temperature | 72-80°F (22-27°C) |
|---|---|
| pH | 8.1-8.4 |
| Salinity | 1.023-1.025 |
| Ammonia/Nitrite | 0 ppm |
| Nitrate | <20 ppm |
đŊī¸ Diet & Feeding
Carnivores that readily accept all meaty foods.
- Frozen mysis shrimp - Staple food
- Frozen brine shrimp
- Quality pellets
- Marine flakes
Feed 2-3 times daily in small amounts.
đ Compatibility
Good Tankmates
- Clownfish
- Tangs
- Wrasses
- Gobies
- Most community fish
Avoid
- Other Royal Grammas (unless mated pair)
- Similar-looking fish (Royal Dottyback)
đ Unique Behavior
- Swims upside down along cave ceilings
- Opens mouth wide to threaten rivals (mostly bluff)
- Retreats tail-first into cave when startled
đĄ Tips for Success
- Provide caves - they need a home territory
- One per tank unless proven pair
- Add before aggressive tankmates
- Excellent beginner fish
đ Summary
The Royal Gramma is a perfect beginner marine fish - hardy, beautiful, reef-safe, and peaceful. Its unique behavior of swimming upside down in caves adds interest. Provide a cave for territory and keep one per tank for best results.