Peacock gudgeon - Tateurndina ocellicauda

Scientific name: Tateurndina ocellicauda

Common name: Peacock gudgeon

Family: Eleotridae

Usual size in fish tanks: 7 - 8 cm (2.76 - 3.15 inch)

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Recommended pH range for the species: 6 - 8

Recommended water hardness (dGH): 6 - 12°N (107.14 - 214.29ppm)

0°C 32°F30°C 86°F

Recommended temperature: 22 - 26 °C (71.6 - 78.8°F)

The way how these fish reproduce: Spawning

Where the species comes from: Oceania

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Middle levels

Food and Feeding

The Peacock Gudgeon (Tateurndina ocellicauda) is a selective feeder that thrives on a diet of high-quality live or frozen foods. While they may occasionally accept flakes or pellets, their preference for live treats such as brine shrimp, bloodworms, and daphnia makes these the best options for maintaining their health and coloration. Feed them small portions twice daily to prevent overfeeding and ensure all food is consumed. Offering a variety of food helps keep them healthy and engaged.

Origin

The Peacock Gudgeon is native to Papua New Guinea, specifically found in the slow-moving rivers, streams, and swamps of the eastern region. These habitats are characterized by warm, soft to slightly hard water with abundant vegetation and shaded areas. Creating a similar environment in the aquarium helps replicate their natural conditions and promotes natural behavior.

Sexing

Sexing Peacock Gudgeons is straightforward. Males typically have a more rounded and pronounced head, while females have a sleeker, streamlined shape. During breeding readiness, females develop a noticeable yellow patch on their belly, which becomes more visible as spawning approaches. Observing these physical differences helps determine pairs for breeding.

Breeding

Breeding Peacock Gudgeons is relatively simple with proper conditions. Provide small caves, PVC pipes, or similar structures in the tank as spawning sites. During courtship, the male displays vibrant colors to attract the female to the chosen site. Once eggs are laid inside the cave, the male fertilizes them and takes on the responsibility of guarding and fanning the eggs to prevent fungal growth and ensure oxygenation. The eggs hatch within 5-7 days, depending on water temperature. Fry are very small and grow slowly, so begin feeding them infusoria, microworms, or newly hatched brine shrimp. Frequent water changes and pristine conditions are essential for the fry's survival and development.

Lifespan

With proper care, Peacock Gudgeons can live 3-5 years in captivity. Maintaining stable water conditions, a varied diet, and a stress-free environment will maximize their lifespan and ensure they thrive.

Tank Setup

To replicate their natural habitat, Peacock Gudgeons require a well-planted aquarium with a minimum size of 40 liters (~10 gallons) for a pair. Use a soft or fine-gravel substrate and include plenty of live plants such as Anubias, Java Fern, and Cryptocorynes. Floating plants like Pistia or Amazon Frogbit can provide shaded areas, mimicking their natural environment. Incorporate caves, driftwood, and small rock structures for hiding spots and spawning sites. Maintain water parameters within their ideal range: pH 6-8, hardness 6-12°N (107.14-214.29 ppm), and temperature 22-26°C (71.6-78.8°F). Good water quality is essential; use gentle filtration to avoid strong currents and perform regular water changes to keep the environment clean.

Short Description

The Peacock Gudgeon (Tateurndina ocellicauda), also known as the Peacock Goby or Eye-spot Sleeper, is a peaceful, colorful species native to Papua New Guinea. Unlike most gobies, they actively swim at all tank levels, making them a lively and engaging addition to aquariums. These fish thrive in pairs or small groups in well-maintained, planted tanks with plenty of hiding spots. Their unique breeding behavior and vivid colors make them a favorite among aquarists.