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Blue Head Wrass -Thalassoma bifasciatum

Blue Head Wrass -Thalassoma bifasciatum

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The Blue Head Wrass is a beautiful addition to medium size aquariums of at least 75 gallons.

Category Fish
Care Level Easy
Diet Carnivore
Origin Florida
Minimum Tank Size 75 Gallons
Water Condition 72-78F, dkh 8-12, PH 8.1-8.4, sg 1.023-1.025
Water Flow Medium
Light Medium
Reef Compatible With Caution
Compatibility See Chart


Thalassoma bifasciatum, the bluehead, bluehead wrasse or blue-headed wrasse, is a species of marine ray-finned fish, a wrasse from the family Labridae. It is native to the coral reefs of the tropical waters of the western Atlantic Ocean. Individuals are small and rarely live longer than two years.

The Bluehead Wrasse should be housed in a 75 gallon or larger aquarium with plenty of live rocks for hiding and a sandy substrate to burrow into at night. Larger, gregarious tankmates are recommended since the Bluehead Wrasse will demonstrate territorial behavior and harass new additions to the aquarium. If possible, the Bluehead Wrasse should be the last fish added to the aquarium. The Bluehead Wrasse is a carnivore whose natural diet consists of fish, crustaceans, motile invertebrates, and worms. As such, the Bluehead Wrasse may eat unwanted mantis shrimp or bristleworms in the aquarium. The Bluehead Wrasses does not eat corals or macroalgae.

The Bluehead Wrasse diet should include vitamin enriched frozen mysis shrimp, vitamin enriched frozen brine shrimp, and other meaty foods along with a high quality marine flake and marine pellet food.