More info
Datasheet
| Minimum Tank Size | 40 litres / 10.57 US gallons |
| Maximum Size | 3.8cm / 1.50inches |
| Temperature | 21°C / 69.80°F - 28°C / 82.40°F |
| Hardness | 5.04dgH / 90ppm - 12.05dgH / 215ppm |
| pH | 4.5-7.5 |
General Description
Pseudomugil gertrudae, commonly known as Spotted Blue-Eye, exhibits variations in color patterns, body size, and fin morphology among isolated wild populations. Belonging to the Pseudomugilidae family, it is closely related to rainbowfish but differs in certain anatomical features.
Aquarium Setup
Best suited for a densely planted tank with floating plants and driftwood to mimic its natural habitat, a well-oxygenated environment with stable water conditions is essential. Avoid adding this species to immature aquariums due to its sensitivity to water chemistry fluctuations.
Behaviour
Peaceful yet easily outcompeted in community tanks, P. gertrudae is recommended to be housed with fish of similar size and disposition. It thrives in groups of at least 8-10 specimens, where males showcase vibrant colors and compete for female attention.
Feeding and Diet
In the wild, Spotted Blue-Eye feeds on zooplankton, phytoplankton, and invertebrates. In captivity, it should be offered live foods like Daphnia and Artemia nauplii, along with small floating dried foods suitable for its size.
Reproduction & Dimorphism
A seasonal egg-scatterer, P. gertrudae exhibits no parental care and consumes its own eggs if given a chance. Males are more colorful and develop extended unpaired fins as they mature. Breeding in captivity involves providing suitable spawning media and raising fry with care.
Habitat and Distribution
This species prefers shallow, vegetated waters in creeks, streams, billabongs, and swamps, often found among macrophytes and submerged woody structures. Indigenous to regions like Indonesia, Australia, and Papua New Guinea, it is rare in the wild due to commercial breeding for the aquarium trade.