Pacific Signifier Blue Eye Rainbowfish (Pseudomugil signifer) – Tank-Bred!
This beautiful rainbowfish is an excellent nano species and it is one of the most variable and versatile species of its family!
The Pacific Blue Eye Signifer Rainbowfish (Pseudomugil signifer) is the most widespread and variable of the blue eye rainbowfish that inhabit the freshwater and brackish rivers and estuaries of coastal Western Australia. It lives in very large schools in areas with dense vegetation, so it is an ideal candidate for the planted aquarium.
Key Features
| Feature | Detail |
|---|---|
| Species | Pseudomugil signifer |
| Habitat | Freshwater and brackish rivers, estuaries of coastal Western Australia |
| Behavior | Lives in large schools; prefers densely vegetated tanks |
| Size | Up to 3 inches (7.5 cm) in length |
| Compatibility | Best suited for community tanks with peaceful fish |
FAQ
How are the rainbowfish shipped?
Live fish are shipped exclusively via UPS Next Day Air for safety and optimal transport.
What kind of environment does the Pacific Signifier Rainbowfish prefer?
It thrives in planted tanks with dense vegetation and prefers groups of fish to mimic natural school behavior.
Is this fish suitable for a small aquarium?
Yes, it is an excellent nano species and performs well in smaller tanks as long as there is sufficient plant coverage and space for schooling.




Katherine Newman –
The fish arrived healthy and active. My tank has been planted with dense vegetation, and the rainbowfish immediately started swimming in groups. They look vibrant and are very peaceful. Great addition to a small planted tank.
Megan Duncan –
I’ve had this species for a month now and they’re very active and colorful. They seem to enjoy the plants and the group setting. A bit shy at first but settled quickly.
Jan Rees –
The fish are lively and show great color variation. I love how they swim together in the back of the tank. Easy to care for and fits well with my existing community fish.