Royal Dottyback
A bold and brilliantly coloured marine fish that brings personality and vibrant purple hues to your reef aquarium
The Royal Dottyback is a stunning marine species known for its deep purple colouration, hardy nature, and confident personality. Native to the reefs of the Indo-Pacific, this eye-catching fish is an excellent choice for reef keepers looking to add both colour and character to their aquarium. Royal Dottybacks are active swimmers that spend much of their time exploring rockwork and caves, making them a fascinating fish to observe throughout the day.
While generally hardy and easy to care for, they can be territorial towards similar-shaped fish, so careful stocking consideration is recommended. Their vibrant colour remains striking under reef light.
| Specification | Value |
|---|---|
| Species | Royal Dottyback |
| Origin | Indo-Pacific reefs |
| Colour | Deep purple |
| Behaviour | Active, territorial |
| Compatibility | Best with non-aggressive, dissimilar-shaped fish |
FAQ
What is the typical size of a Royal Dottyback?
The Royal Dottyback typically grows to about 3 to 4 inches in length.
Is the Royal Dottyback suitable for beginners?
It is generally hardy and easy to care for, making it a good choice for experienced reef keepers who can manage territorial behavior.
How does the Royal Dottyback interact with other fish in the tank?
Royal Dottybacks can be territorial, especially toward other fish with similar body shapes. They are best kept with species that have different appearances and are not overly active.

Tracey Black –
The Royal Dottyback is a stunning addition to my reef tank. Its deep purple colour stands out beautifully under the lights. It’s active and curious, often exploring the rockwork. I’ve had to be careful with tankmates, but it’s worth the effort for the visual impact.
Connor Bower –
Great fish with vibrant colour. It’s active and adds a lot of life to the tank. I noticed it becomes more aggressive when other dottybacks are present, so I made sure to keep it with different-shaped fish.
Edward Ince –
I’ve kept this fish for over six months and it’s still healthy and lively. The purple hue is very striking and it enjoys moving around the caves. Just make sure the tank has plenty of hiding spots.