Bluehead Wrasse (Juvenile) – M, 2″ to 3″
Species: Thalassoma amblycephalum
Photo 1: Male adult size
Photo 2: Female juvenile size
Reef Compatible: Yes
Care Level: Intermediate
Disposition: Aggressive
Minimum Tank Size: 75 gallons
Mature Size: 6 inches
| Size | Age | Gender |
|---|---|---|
| 2″ to 3″ | Juvenile | Male |
FAQ
Is this fish suitable for a reef tank?
Yes, the Bluehead Wrasse is reef compatible, but due to its aggressive nature, it should be housed with caution and only in a well-established tank with compatible species.
What is the expected mature size of this fish?
The mature size of Bluehead Wrasse is approximately 6 inches.
How aggressive is this fish in a community tank?
This species is known to be aggressive, especially as it matures. It may display territorial behavior and should not be kept with small or slow-moving fish.


Jason Clark –
Bought the juvenile male for a 75-gallon tank. It’s active and has been eating well. The aggression is noticeable, so I made sure to keep it with larger, robust fish. It’s a good addition to a well-maintained reef setup.
Joe Morrison –
The fish arrived healthy and grew quickly. I had to adjust my tank layout to avoid conflicts with other species. It’s not for beginners, but once settled, it’s a vibrant addition.
Anna Rees –
It’s aggressive and not suited for a small tank. I had to keep it alone initially. After a few weeks, it started to calm down. Still, it requires a lot of space and careful planning.