Pacific blue-eye

Pseudomugil signifer

Wild range: Eastern Australia (Australia)

At a glance: Pacific blue-eye care

Compiled reference information. Review the care notes and original sources below.

What temperature is listed for Pacific blue-eye?

The compiled profile lists 15.0–28.0 °C for Pacific blue-eye (Pseudomugil signifer). Check the original sources below for context and differing recommendations.

What tank size is listed for Pacific blue-eye?

The profile lists a minimum tank volume of 5.3 US gallons (20.0 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.

What pH is listed for Pacific blue-eye?

The compiled profile lists a pH of 6.5–8.0. Review the cited care sources alongside the other water parameters in this profile.

Natural habitat

The Pacific Blue Eye is found in clear, fast-flowing streams and in the mangrove regions of estuaries along the eastern coast of Australia, spanning from northern Queensland to southern New South Wales. These habitats are characterized by well-oxygenated water and abundant aquatic vegetation, which provide both shelter and food for the species.

Where they are found

This species is native to Northern Australia, with populations found primarily in areas with ample plant cover. Their habitat is characterized by clear pools and backwaters where they can swim freely among the aquatic vegetation.

Aquarium care

When keeping Pacific Blue Eye Signifer Rainbowfish, a spacious and well-planted aquarium is essential to mimic their natural habitat. They prefer a moderate water flow and should be kept in groups of at least six individuals to display their social behaviors and vivid coloration effectively. Regular water changes and a balanced diet, including high-quality dry foods supplemented with live or frozen options, help maintain their health.

Feeding

In the aquarium, they can be fed a varied diet consisting of high-quality flake foods, daphnia, and finely crushed pellets to mimic their natural diet of mosquito larvae and other small insects.

Compatibility

The Pacific Blue Eye Signifer Rainbowfish is generally peaceful and mates well with similarly sized fish. However, caution should be taken when introducing them with very small shrimp or fry, which they may prey upon. Their community-friendly behavior makes them compatible with many non-aggressive tank mates.

Breeding

Breeding occurs when males display to females, and best results are achieved in spawning mops or among fine-leaved plants where the eggs can be hidden. After spawning, the adults should be removed to prevent them from eating the eggs. The eggs hatch in approximately 7 to 10 days, depending on water temperature.

Sources

Compiled from multiple independent care sheets — not copied from a single site.