Thalassoma lutescens, commonly known as the Yellow-breasted Wrasse, is a strikingly colourful marine fish native to the Indo-Pacific region. This medium-sized wrasse is prized for its vibrant hues and active swimming behaviour, making it a captivating addition to larger reef aquariums.
Care Level: Moderate to advanced. This species requires stable water parameters and a well-established tank.
Temperament: Semi-aggressive. While generally peaceful with other fish, it may show territorial behaviour towards smaller or more passive tank mates.
Diet: Carnivorous. Feed a varied diet including high-quality frozen or live foods such as mysis shrimp, brine shrimp, and finely chopped seafood. Supplement with marine pellets to ensure balanced nutrition.
Minimum Tank Size: 150 litres (approximately 40 gallons) or larger to accommodate its active swimming and territorial needs.
Reef Compatibility: With Caution. Thalassoma lutescens may nip at small invertebrates or sessile reef animals, so careful monitoring is advised in reef setups.
Lighting and Water Flow: Standard reef lighting and moderate water flow are suitable to mimic its natural habitat.
Placement: Provide plenty of live rock for hiding and territory establishment. Ensure ample open swimming space.
Origin: Indo-Pacific region.
Maximum Size: Up to 20 cm (approximately 8 inches).
Overall, the Thalassoma lutescens is a lively and visually stunning wrasse that thrives in well-maintained marine aquariums with appropriate tank mates and diet.



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