Yellow Pseudochromis: The Bold Yellow Dottyback
The Yellow Pseudochromis (Pseudochromis aureus), also often called the Yellow Dottyback or sometimes the Golden Dottyback, is a stunningly bright and hardy marine fish. Native to the reefs of the Indo-Pacific, this species is prized for its vivid, canary-yellow coloration, which adds an immediate dash of brilliance to any saltwater aquarium. Its small size and bold color make it a fantastic centerpiece for smaller reef systems.
Reaching a maximum adult length of about 4 inches (10 cm), the Yellow Pseudochromis is easy to care for but should not be underestimated. Like most Dottybacks, it is territorial and semi-aggressive. It requires an aquarium of at least 30 gallons with ample live rock to create caves, crevices, and hiding spots.
| Specifications |
|---|
| Scientific Name: Pseudochromis aureus |
| Common Names: Yellow Dottyback, Golden Dottyback |
| Adult Size: 4 inches (10 cm) |
| Origin: Indo-Pacific reefs |
| Temperament: Territorial, semi-aggressive |
| Minimum Tank Size: 30 gallons |
| Water Conditions: Salinity 1.020–1.025, Temperature 72–78°F (22–26°C) |
FAQ
What is the typical tank size required for a Yellow Pseudochromis?
A minimum tank size of 30 gallons is recommended to provide enough space and hiding spots for this territorial fish.
Is the Yellow Pseudochromis aggressive toward other fish?
Yes, it is semi-aggressive and territorial, especially during feeding or when defending its space. It should be housed with compatible, non-susceptible species and ample rock structures.
How does the Yellow Pseudochromis compare to other dottyback species?
It stands out due to its vivid canary-yellow coloration, which is more intense than many other dottyback species. It is generally more hardy and easier to maintain than some of its relatives.


Cameron May –
The Yellow Pseudochromis is a stunning addition to my 30-gallon reef tank. Its bright yellow color really pops against the live rock. I’ve had it for three months and it’s active but not overly aggressive. It uses the caves well and seems content. Only thing to note is it does defend its space, so I made sure to keep it with larger, calm fish.
Gordon MacLeod –
Great fish for a small reef setup. The color is vibrant and it’s surprisingly hardy. I noticed it becomes more active during feeding times, which is normal. It’s not the most social fish, but it’s a great visual focal point. I’d recommend it for reef hobbyists who want bold, eye-catching fish.
Sarah Arnold –
I bought this for my new saltwater tank and it’s already a highlight. The yellow color is intense and it’s very active. I’ve added plenty of live rock and it’s using the crevices well. It hasn’t shown aggression toward other fish, which is a relief. A solid choice for a colorful, low-maintenance reef fish.