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Phenacogrammus interruptus (Albino Congo Tetra)

Overview

Image of congo tetra albino phenacogrammus interuptus

The Albino Congo Tetra is a stunning color morph of the standard Congo Tetra, native to the Congo River Basin. This variant lacks the typical dark pigmentation, resulting in a pale, opalescent body that catches the light beautifully, paired with distinct pinkish-red eyes.

Distribution and Habitat

While the albino variant is exclusively captive-bred for the aquarium trade, the wild Phenacogrammus interruptus originates from the central Congo River Basin in Africa. They inhabit acidic, dark, and heavily vegetated jungle streams and tributaries.

Description of Albino Congo Tetra

Image of congo tetra albino phenacogrammus interuptus

Body shape:

They possess an elongated, laterally compressed body typical of larger tetra species, giving them a streamlined and robust appearance.

Color:

The body is predominantly translucent white to pale pink, overlaid with a stunning iridescent sheen that flashes yellow, green, and pale blue under aquarium lighting.

Barbels:

They do not have barbels.

Snout:

The snout is relatively short with a terminal mouth designed for snatching insects and small prey from the water column.

Eyes:

As true albinos, they feature striking, bright pink or red eyes.

Fins:

Males develop spectacular, elongated, and feathery dorsal, anal, and caudal fins. Females have shorter, more modest fins.

The Tail:

The caudal fin is deeply forked, with adult males often developing extended middle rays.

Temper

They are generally peaceful but can be easily startled. They are best kept with other calm, similarly sized fish.

Sociality

Albino Congo Tetras are highly social schooling fish. They should be kept in groups of at least six, preferably more, to feel secure and display their best behaviors.

Activity

They are active mid-to-top water swimmers. They spend most of their day swimming openly in the current, especially when kept in a proper school.

Keeping and Caring for Albino Congo Tetra

Image of congo tetra albino phenacogrammus interuptus

Tank size:

A minimum of 110 liters (30 gallons) is required, though a larger tank of 200 liters (55 gallons) or more is highly recommended to provide adequate swimming space for a school.

Water Parameters:

They thrive in well-oxygenated, slightly acidic to neutral water with low nitrate levels.

Temperature

Maintain the water temperature between 24°C and 27°C (75°F - 81°F).

pH

The ideal pH range is 6.0 to 7.5.

Hardness

They prefer soft to moderately hard water, generally between 3 and 18 dGH.

Ammonia, Nitrite, Nitrate

Ammonia and Nitrite must be 0 ppm. Nitrates should be kept as low as possible, ideally below 20 ppm, as they are sensitive to poor water quality.

Lighting

Moderate to dim lighting is preferred. Floating plants can help diffuse bright lights, making the fish feel more secure and enhancing their iridescent colors.

Water flow

A moderate water flow mimics their natural river habitat and encourages healthy swimming behavior.

Decorations and Plants

A dark substrate, driftwood, and dense plantings around the perimeter of the tank are ideal. Leave plenty of open swimming space in the center.

Diet

They are omnivorous and will readily accept high-quality flakes, micro-pellets, and frozen or live foods such as daphnia, bloodworms, and brine shrimp.

Some Feeding Tips

Offer a varied diet to maintain their health and coloration. Because they are surface and mid-water feeders, ensure food doesn't sink too quickly before they can reach it.

Breeding

Breeding is possible but requires a separate breeding tank with very soft, acidic water and dim lighting. They are egg scatterers; providing a mesh bottom or dense moss allows the eggs to fall out of reach of the parents, who will eat them given the chance.

Conclusion

The Albino Congo Tetra is a mesmerizing addition to a spacious, planted community aquarium. With their peaceful demeanor, active schooling nature, and pearlescent beauty, they reward dedicated aquarists with a truly spectacular display.

Fish info

Care level: Moderate
Temperament: Peaceful
Adult size: 8 cm
Life expectancy: 3-5 years
Fish type: Tetra
Temperature : 24-27°C
pH: 6.0-7.5
Color Form: Clear, Pink, White, Yellow
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