Neon Tetra

Neon Tetra is one of the most popular freshwater aquarium fish for hobbyists who want bright colour, calm behaviour, and beautiful schooling movement. Its shimmering electric blue stripe paired with a vivid red band makes it stand out in planted tanks, blackwater-style setups, and peaceful community aquariums. This fish stays small, making it suitable for nano to medium aquariums, but it looks best when kept in a proper group rather than alone.

Because Neon Tetras are gentle and social, they are ideal for aquarists building a calm display with other small community fish. Their colours appear especially rich under soft lighting, dark substrate, and dense green plants. Stable water and good filtration are more important than fancy equipment, so they are a practical choice for beginners who can maintain consistent tank conditions.

Key Features

• Appearance: Slender body with a glowing metallic blue stripe from nose to tail and a bright red band along the rear half of the body.
• Size: Usually sold as small juvenile community fish and typically grows to around 3 to 4 cm in home aquariums.
• Colors: Brilliant neon blue with red highlights that become more attractive in a planted or darker aquascape.
• Lifespan: With stable water quality, proper feeding, and low stress, Neon Tetras can live around 3 to 5 years.
• Temperament: Peaceful, shy when kept in very small numbers, and most confident when maintained in schools.
• Water Type: Freshwater species suited to clean, well-cycled aquariums with gentle flow.

Care Requirements

• Tank Size: A minimum of 40 litres is recommended for a small school, with larger tanks giving better swimming space and more stable water parameters.
• Water Parameters: Best kept around 22 to 26°C with a pH of about 6.0 to 7.5. Sudden swings in temperature or water chemistry should be avoided.
• Diet: Accepts quality micro pellets, crushed flakes, and occasional treats like baby brine shrimp, daphnia, or other small live or frozen foods.
• Tank Mates: Suitable with rasboras, small peaceful tetras, corydoras, dwarf gouramis, shrimp-safe community fish, and other non-aggressive species.
• Schooling Behaviour: Keep at least 6 together, though 8 to 12 or more is even better for natural movement, reduced stress, and stronger colour display.
• Care Tips: Provide plants, open swimming space, subdued lighting, and regular water changes. Avoid mixing with large or fin-nipping fish that may intimidate them.

Neon Tetras are a reliable pick for aquarists who want a colourful, peaceful schooling fish without needing a large aquarium. For the best display, add them only to a mature tank and keep them in a healthy group so their confidence and colour can fully develop.