Blue Eye Gertrudae Rainbowfish

The classic blue-eye gertrudae is a beautiful small schooling rainbowfish suitable for planted aquariums and most community fish tanks. As with most rainbow fish, the male gertrudae have larger fins and more color than the female, but both sexes are attractive. We ship these as close as possible to a 50:50 mix of males and females. We recommend a school of six or more, but a pair would do well in a peaceful community tank. The ARU II is a variation bred for higher color (and a little higher price).

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: Males have spotted, sail-like fins they flare at each other to show off. Their bright blue eyes stand out in a planted tank.