Signifer Rainbowfish

Also called the spotted blue eye rainbowfish, Signifer is Latin for signal and this refers to the offset fins of the male signifer. These fins expand and compress when males are sparring. The signifer rainbowfish is abundant in Australia and swims in schools in shallow waters, so these fish will tend to school at the upper level of the aquarium. We recommend a school of six or more to establish natural conditions for this aquarium-hardy species.

Quick Facts

Care Guide

Tank setup: Give them a planted tank with gentle filtration, some floating plants and a lid. They are small, so a sponge over the filter intake keeps them safe.

Feeding: Feed crushed flake or micro pellets once or twice a day, only as much as they eat in a couple of minutes. They also enjoy frozen brine shrimp.

Tankmates: Blue-eyes are small and gentle, so keep them with other small, peaceful fish such as rasboras, small tetras, pygmy corydoras and shrimp.

Good to know: Male signifers flick out their black-and-yellow fins at each other in friendly sparring displays.