Description
Pseudomugil gertrudae is a very small and beautiful blue-eye from eastern Indonesia. Reaching no more than 1.5", they are perfect for aquarists that want to keep rainbowfish but don't have space for their larger relatives. Both sexes have a golden-yellow body, and males develop lovely powder blue fins studded with black dots. True to their name, they have crystal-blue eyes that are visible from across the room in mature individuals! While their tiny size prevents these rainbows from being housed with many larger fishes, they are peaceable and mix well with similar-sized fishes.
These are adults around 1.5" long; they are already showing colour and sexual dimorphism, but their colour intensity will only develop further with age.