Cochu Blue Tetra
Tetras
Pickup currently unavailable at 28 Wellesley Road Napier South
Shipping & Returns
All live fish are shipped using NZPost overnight services with authority to leave (no signature).
We cannot guarantee the overnight services, this is a service that we/you pay for; but is not guaranteed.
We DO NOT offer returns on any alive animal.
Above are key points of our policy, Click Here to read our full shipping policy.
Dead On Arrival (DOA) Cover*
- DOA must be reported within 2 hours of delivery.
- Bags must remain sealed (do not remove rubber band or tape)
- Photos & Videos must be supplied this can be emailed or sent through live chat; including your order No. (minimum 3 clear images, showing dead fish & sealed bag)
- DOA does not apply once the bags are opened & fish have been released.
- DOA does not apply to any Rural (RD) address.
Introducing New Fish
The Cochu Blue Tetra (Boehlkea fredcochui) is a striking and energetic freshwater tetra best known for its vivid electric blue coloration and bold black horizontal stripe. Native to South America, this species adds intense colour and movement to community aquariums.
Cochu Blue Tetras are more active and slightly more assertive than many small tetras, making them best suited to well-planned community tanks with similarly sized, fast-moving tank mates. When kept in proper groups, they display confident schooling behaviour and strong colour contrast.
Physical Characteristics
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Adult Size: Approximately 5–6 cm (2–2.5 inches)
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Coloration: Bright metallic blue body with a distinct black lateral stripe
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Body Shape: Slender, streamlined tetra profile
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Sexual Dimorphism:
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Males are slimmer and often display stronger blue coloration
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Females are slightly larger and rounder
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Behaviour & Temperament
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Temperament: Semi-peaceful
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Tank Level: Mid-water
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Schooling Behaviour: Should be kept in groups of 6 or more
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Activity Level: Highly active
Suitable Tank Mates
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Other robust tetras
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Rasboras
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Rainbowfish
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Corydoras catfish
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Peaceful barbs
Avoid:
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Very small or timid fish
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Long-finned species
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Aggressive or territorial fish
Breeding Information
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Spawning Type: Egg scatterer
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Breeding Setup:
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Soft, slightly acidic water
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Fine-leaved plants or spawning mops
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Parental Care: None
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Notes: Adults may eat eggs; separation required for breeding attempts
Special Considerations
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Can display fin-nipping behaviour if under-stocked
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Best kept in larger groups to reduce aggression
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Requires swimming space due to high activity
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Strong colour develops with stable water quality and varied diet
Aquarium Requirements
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Minimum Tank Size: 75-90 litres
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Water Temperature: 22–28°C
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pH Range: 6.0–7.5
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Water Hardness: 3–15 dGH
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Substrate: Sand or fine gravel
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Decor: Live plants, driftwood, shaded areas
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Filtration: Moderate, well-maintained
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Lighting: Moderate; plants help diffuse brightness
Diet & Feeding
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Diet Type: Omnivore
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Recommended Foods:
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Frozen foods such as daphnia and brine shrimp
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Occasional live foods for conditioning
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Feeding Frequency: Once or twice daily in small portions
We aim to provide up to date product information including ingredients, size and colour specifications, packaging and product features, as provided to us by the product manufacturer. As product details change from time to time, this information is intended as a guide only and some delay may occur in the updating of our listing. Product images are indicative of the appearance and the product delivered may vary slightly from the product image show. When precise information is important, we recommend that you read the label on the products you purchase or contact the manufacturer of the product.
