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The Royal Gramma (Gramma loreto) is one of the most popular reef-safe saltwater fish available, prized for its vibrant purple and yellow coloration and peaceful temperament. Ideal for reef and community aquariums, this hardy species is a favorite among beginner and experienced aquarists alike.
Native to Caribbean coral reefs, the Royal Gramma thrives in aquariums with live rock and caves, where it naturally hovers and darts in and out of hiding spots. Its calm behavior and small adult size make it an excellent choice for nano reefs and larger saltwater tanks.
Why Choose a Royal Gramma?
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Striking Purple & Yellow Coloration
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100% Reef Safe – safe with corals and invertebrates
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Peaceful Temperament – great for community tanks
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Hardy & Easy to Care For
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Perfect for Beginner Reef Aquariums
Care & Tank Requirements
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Scientific Name: Gramma loreto
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Adult Size: Up to 3 inches
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Minimum Tank Size: 30 gallons
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Temperament: Peaceful (may be territorial with similar fish)
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Diet: Omnivore – frozen foods, pellets, flakes
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Reef Compatibility: Fully reef safe
Ideal Tank Mates
Royal Grammas do best with other peaceful saltwater fish, such as clownfish, gobies, blennies, and wrasses. Avoid housing multiple Royal Grammas in smaller tanks to prevent territorial behavior.
If you’re looking for a colorful, low-maintenance reef fish, the Royal Gramma is a proven, reliable addition that brings both beauty and personality to your aquarium.
