Neon Tetra

Environment

Provide a minimum of 60 liters and keep it strictly in a school of 10 individuals or more to reduce stress. It appreciates soft and slightly acidic water (pH 5 to 7), between 20 and 26 °C, with dense planting, driftwood and subdued lighting that enhance its colors. Well-filtered and stable water is essential as the species tolerates parameter spikes poorly.

Feeding

Omnivorous, it readily accepts quality flakes and fine granules. Vary its diet with live or frozen prey (brine shrimp, daphnia, bloodworms) to support its vitality and colors. Feed small amounts several times a day rather than one large meal.

Health & common diseases

The neon tetra is susceptible to neon tetra disease (Pleistophora hyphessobryconis), a microsporidian parasite causing discoloration, weight loss and swimming disorders, with no effective treatment. It can also contract white spot disease (ichthyophthirius), fin rot and fungal infections, especially under stress or poor water quality. To prevent these diseases, maintain clean water (regular changes), stable temperature (23-26°C), avoid sudden variations and overcrowding, and ensure a varied diet. When introducing new fish, prior quarantine is strongly recommended.

Tips & tankmates

Keeping a neon alone or in twos or threes is a common mistake that causes stress and disease. Avoid companions that are too large such as angelfish, which may consider it prey. Introduce it into an already mature and cycled aquarium, as it is susceptible to neon tetra disease (rapid discoloration and death).

Sources

• Néon bleu — Wikipédia
• Paracheirodon innesi — FishBase