Swamp Blue Eye Rainbowfish Care Guide

Pseudomugil paludicola · Freshwater Fish

Swamp Blue Eye Rainbowfish
AI-generated illustration of Swamp Blue Eye Rainbowfish
Temperature
72-82°F
pH
7.0-8.0
Adult size
~1.6″ (4 cm)
Suggested tank
10+ gal
Group size
6+ together
Origin
Australasia
Family
Pseudomugilidae

What Swamp Blue Eye Rainbowfish look like

Pseudomugil paludicola, commonly known as the Swamp Blue Eye Rainbowfish, exhibits a diminutive, laterally compressed body that reaches a maximum adult size of approximately 1.5 inches (4 cm). The species is characterized by its translucent body adorned with striking iridescent blue eyes, which serve as a distinguishing feature. Males display subtle fin extensions, particularly on the dorsal and anal fins, which are more pronounced during breeding periods, contributing to sexual dimorphism. The species possesses a well-developed lateral line system, aiding in the detection of water movements in its wetland habitat. Defensive adaptations include a streamlined body shape that allows for quick evasive maneuvers, and the presence of a small adipose fin that enhances stability during rapid swimming.

Behavior & temperament

The Swamp Blue Eye Rainbowfish is predominantly a social species, often found in small schools within its natural habitat, which includes shallow, vegetated wetlands. It exhibits a pelagic dwelling behavior, typically inhabiting the upper water column where it forages for food. Breeding occurs through egg scattering, with females depositing eggs among aquatic vegetation, providing some protection for the developing embryos. The species is generally peaceful and exhibits low aggression levels, making it suitable for community aquariums, although males may display territorial behavior during breeding displays.

Diet & feeding

In the wild, Pseudomugil paludicola is an omnivore, feeding on a varied diet that includes small invertebrates, zooplankton, and plant matter. In captivity, it thrives on a balanced diet of high-quality flake food, supplemented with live or frozen foods such as brine shrimp and daphnia to ensure optimal health and coloration.

Behind the name

Pseudomugil (false mugil); paludicola (from Latin 'paludis' meaning swamp and 'cola' meaning dweller).

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Swamp Blue Eye Rainbowfish?

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