Longfin Indigo Dottyback (Pseudochromis fridmani x sankeyii)
The Longfin Indigo Dottyback is a captive-bred hybrid fish, known for its striking bluish-purple body, black stripes inherited from the Striped Dottyback, and a more docile temperament than many other dottyback species. Growing to about 3 inches, it thrives in reef-safe saltwater aquariums of 30 gallons or more, requiring a diet of meaty foods like mysis shrimp, and benefits from live rock for hiding.
Physical Characteristics
- Hybrid Origin: A cross between the Orchid Dottyback and the Striped Dottyback.
- Coloration: Features an indigo or bluish-purple body with distinctive horizontal black stripes.
- Size: Grows up to approximately 3 inches.
| Feature | Detail |
|---|---|
| Origin | Captive-bred hybrid |
| Temperament | Docile, suitable for community reef tanks |
| Minimum Tank Size | 30 gallons |
| Diet | Meaty foods such as mysis shrimp |
| Habitat | Requires live rock for hiding and security |
FAQ
What is the origin of the Longfin Indigo Dottyback?
The Longfin Indigo Dottyback is a captive-bred hybrid resulting from a cross between the Orchid Dottyback and the Striped Dottyback.
How big does this fish grow?
It grows to approximately 3 inches in length.
What kind of tank and environment does it need?
It thrives in a reef-safe saltwater aquarium of at least 30 gallons and requires live rock for hiding and security.

Alan Howard –
This dottyback has been a great addition to my 40-gallon reef tank. It’s much calmer than I expected and blends well with the other fish. The bluish-purple color and black stripes are very eye-catching. I feed it mysis shrimp twice a week and it eats readily. The live rock helps it feel secure.
Diana Sharp –
I bought this fish for a beginner reef setup, and it’s been peaceful so far. It doesn’t chase other fish like some dottybacks do. The color is vibrant and the size is manageable. I recommend it for those looking for a more docile dottyback species.
Ryan Rutherford –
After a few weeks, the fish has settled into its tank and is active during the day. The black stripes stand out against the blue background. I appreciate the captive-bred origin—no stress from wild-caught fish. It’s a good choice for a reef tank with moderate space.