Neon Tetra

Paracheirodon innesi

Sample image shown – actual fish may vary.

The Neon Tetra is one of the world's most popular freshwater aquarium fish, loved for its brilliant blue and red coloration, peaceful nature, and active schooling behaviour. Their vibrant colours create a stunning display in planted aquariums, making them an excellent choice for both beginner and experienced fishkeepers.

Key Information

Common Name: Neon Tetra
Scientific Name: Paracheirodon innesi
Origin: Southeastern Colombia, Eastern Peru, Western Brazil
Adult Size: 3.8–5 cm (1.5–2 inches)
Temperament: Peaceful
Diet: Omnivore
Care Level: Easy
Breeding Difficulty: Moderate to Difficult

Appearance

Neon Tetras are instantly recognisable by their striking iridescent blue stripe that runs from the nose to the tail, complemented by a vibrant red stripe along the lower half of the body. Their bright colours stand out beautifully against plants and dark substrates.

Behaviour & Compatibility

Neon Tetras are peaceful schooling fish that should be kept in groups of at least six, although larger schools of 10 or more will display more natural behaviour and create a spectacular visual effect.

They make excellent community fish and are compatible with a wide range of peaceful species, including:

• Corydoras

• Rasboras

• Small Gouramis

• Dwarf Cichlids

• Other peaceful Tetras

• Shrimp (larger adults)

Aquarium Requirements

Minimum Tank Size: 40 Litres (10 Gallons)
Temperature: 20–27°C
pH: 5.0–7.0
KH: 4–10 dKH

Neon Tetras thrive in established aquariums with stable water parameters. A well-planted aquarium with driftwood, rocks, and shaded areas will help them feel secure and display their best colours.

Feeding

As omnivores, Neon Tetras readily accept a wide variety of foods, including:

• High-quality micro pellets

• Tropical flakes

• Frozen brine shrimp

• Daphnia

• Bloodworms

• Tubifex

A varied diet will help maintain their health and vibrant coloration.

Breeding

Breeding Neon Tetras can be challenging and typically requires very soft, acidic water and subdued lighting. While possible in home aquariums, it is generally considered an advanced breeding project.

Why We Love Neon Tetras

• Brilliant blue and red coloration

• Perfect for planted aquariums

• Peaceful and community-friendly

• Easy to care for

• Excellent schooling behaviour

• Ideal for both beginners and experienced aquarists

Neon Tetras are a timeless aquarium favourite, bringing colour, movement, and life to community aquariums of all sizes.