Gramma lorreto
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The Gramma lorreto, or Royal gramma as it is commonly referred to, is one of the most striking fish species around. Due to their peaceful nature and stunning appearance, the royal gramma is an ideal inhabitant for reef aquariums. However their natural range includes the Bahamas, Venezuela and the Lesser Antilles. They are around 8 centimetres when fully grown. Image: Smithsonian Institute
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