Cochu Blue Tetra

The (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.

s 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

Adult Size: Approximately 5–6 cm (2–2.5 inches)

Coloration: Bright metallic blue body with a distinct black lateral stripe

Body Shape: Slender, streamlined tetra profile

Sexual Dimorphism:

Males are slimmer and often display stronger blue coloration

Females are slightly larger and rounder Behaviour & Temperament

Temperament: Semi-peaceful

Tank Level: Mid-water

Schooling Behaviour: Should be kept in groups of 6 or more

Activity Level: Highly active Suitable Tank Mates

Other robust tetras

Rasboras

Rainbowfish

Corydoras catfish

Peaceful barbs

Avoid:

Very small or timid fish

Long-finned species

Aggressive or territorial fish Breeding Information

Spawning Type: Egg scatterer

Breeding Setup:

Soft, slightly acidic water

Fine-leaved plants or spawning mops

Parental Care: None

Notes: Adults may eat eggs; separation required for breeding attempts Special Considerations

Can display fin-nipping behaviour if under-stocked

Best kept in larger groups to reduce aggression

Requires swimming space due to high activity

Strong colour develops with stable water quality and varied diet Aquarium Requirements

Minimum Tank Size: 75-90 litres

Water Temperature: 22–28°C

pH Range: 6.0–7.5

Water Hardness: 3–15 dGH

Substrate: Sand or fine gravel

Decor: Live plants, driftwood, shaded areas

Filtration: Moderate, well-maintained

Lighting: Moderate; plants help diffuse brightness Diet & Feeding

Diet Type: Omnivore

Recommended Foods:

High-quality flakes or micro pellets

Frozen foods such as daphnia and brine shrimp

Occasional live foods for conditioning

Feeding Frequency: Once or twice daily in small portions

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