Neon Tetra

Overview

The Neon Tetra (Paracheirodon innesi) is the classic beginner-friendly schooling fish. It resembles the Cardinal Tetra but has a shorter red stripe that only covers the rear half of the body. Hardy, adaptable, and available in several trade forms including Albino, Diamond Head, and Brilliant variants.

Water Parameters

• Temperature: 20–26°C (68–79°F); more cold-tolerant than Cardinal Tetras
• pH: 5.0–7.5 (adaptable; neutral preferred)
• Hardness: 2–12 dGH (wider tolerance than Cardinals)
• Ammonia/Nitrite: 0 ppm

Tank Setup

• Minimum tank size: 55 litres for a group of 8–10
• Substrate: Dark substrate to enhance iridescence
• Decor: Planted with driftwood, floating plants for shade; open swimming areas essential
• Flow: Gentle to moderate

Diet

• Base: Micro flake, crushed granules, micro pellets
• Treats: Frozen daphnia, brine shrimp, bloodworms (occasionally)
• Frequency: 2 small meals daily

Temperament & Tank Mates

• Temperament: Peaceful, active schooling fish
• Best companions: Corydoras, rasboras, guppies, endlers, small gouramis, dwarf shrimp
• Avoid: Fin-nippers (tiger barbs, serpae tetras), large predatory fish
• Schooling: Minimum group of 8; 12+ preferred for natural behaviour

Breeding

• Difficulty: Moderate; requires soft, acidic water and dim lighting
• Process: Scatter eggs among fine-leaved plants; remove parents
• Fry: Very small; requires infusoria or micro worms initially

Common Issues

• Prone to Neon Tetra Disease — quarantine new additions for 2–4 weeks
• Colour fading in alkaline or hard water
• Lifespan: 1–3 years
• Albino variants may be slightly more fragile; extra hiding spots recommended