Congo Tetra

Congo Tetra - A Big, Iridescent Showpiece Tetra for Larger Tanks

The Congo Tetra is a true giant of the tetra world, growing noticeably larger than the other tetras in our range and carrying an iridescent, rainbow-hued body that shifts through blues, golds and greens depending on the angle of light. Flowing, elongated fins — especially in mature males — add real drama to a school in motion.

Because of its larger adult size, this species needs more swimming room and a bigger tank footprint than the smaller tetras, but its temperament remains thoroughly peaceful and easy-going. A shoal of Congo Tetras makes a genuine centrepiece display in a larger, well-established community aquarium, and their gentle nature means they mix calmly with other similarly-sized peaceful fish.

At N8 Aquatics, our fish are carefully raised and conditioned to ensure healthy stock suited to home aquariums.

Species Snapshot

• Size Sold: Juvenile, 3-4 cm
• Adult Size: 8-10 cm
• Tank Size: 100 L minimum, keep in a group of 6 or more
• Temperament: Peaceful, gentle giant of the tetra world
• Temperature: 23-26°C
• pH: 6.0-7.5
• Difficulty: Easy

Ideal Habitat and Care

Provide a tank of at least 100 L minimum with plenty of cover and open swimming space, matching the temperament and schooling needs described above.

• Temperature: 23-26°C
• pH: 6.0-7.5
• Water Flow: Moderate flow
• Maintenance: Weekly partial water changes; needs stable water quality given its larger bioload

Diet

A larger appetite than most tetras, but still an easy-going omnivore.

• Quality flake or pellet as a daily base
• Frozen daphnia for variety
• Frozen bloodworm for extra protein
• Frozen brine shrimp as an occasional treat

Compatibility

Its size and gentle nature make it a striking centrepiece for larger peaceful community tanks.

Suitable tankmates include:

• Other peaceful, similarly-sized community fish
• Larger tetras and barbs
• Corydoras and other bottom dwellers
• Avoid fin-nippers, which target its long flowing fins

Avoid aggressive or fin-nipping species.

Why Buy From N8 Aquatics

• Carefully raised aquarium fish
• Healthy, well-conditioned stock
• Strong genetics and vibrant colouration
• Breeder support if you have questions

Pickup Information

N8 Aquatics currently operates as a local pickup-only breeder in Central Queensland.

Orders are collected by appointment after purchase confirmation.

Please ensure you are able to collect your fish before placing an order.

Important

All livestock sold by N8 Aquatics should be introduced to fully cycled aquariums suitable for the species being kept.

Please ensure your aquarium setup and tankmates are appropriate before purchasing.