How many Neon Tetras should I buy?

Neon Tetras are schooling fish and should always be kept in groups of at least 6, but larger groups of 10 or more help them feel secure and show their best colours.

What size tank do Neon Tetras need?

A minimum 10-gallon tank is recommended for a small school of Neon Tetras. For larger groups or a community setup, a 20-gallon or bigger aquarium works best.

Are Neon Tetras easy to care for?

Yes, Neon Tetras are beginner-friendly as long as they are kept in clean, stable water with peaceful tank mates. They do especially well in planted community aquariums.

What water parameters do Neon Tetras need?

Neon Tetras prefer a temperature of 22–26°C (72–79°F), a pH between 6.0 and 7.0, and soft to moderately soft water. Keeping the water stable is more important than chasing perfect numbers.

What fish can live with Neon Tetras?

Good tank mates for Neon Tetras include Ember Tetras, Rasboras, Corydoras catfish, small peaceful Gouramis, shrimp, and snails. Avoid large, aggressive, or predatory fish.

How big do Neon Tetras get?

Neon Tetras grow to around 1.2–1.5 inches (3–4 cm), making them ideal for small to medium-sized community aquariums.

How long do Neon Tetras live?

With good care, Neon Tetras typically live between 3 and 5 years. Clean water, a stable environment, and a quality diet help them reach their full lifespan.

Do you offer retail and wholesale Neon Tetras?

Yes, we offer healthy, tank-ready Neon Tetras for both retail customers and wholesale aquarium businesses. Please contact us for current bulk pricing and availability.

Are the Neon Tetras quarantined before sale?

Our Neon Tetras undergo health checks and observation before sale to ensure they are active, feeding well, and ready for your aquarium.

Neon Tetra Care Guide: Everything You Need to Know About This Fish

Q: What do Neon Tetras eat?

Neon Tetras enjoy a varied diet of high-quality micro pellets, flakes, and small frozen or live foods such as brine shrimp or daphnia. Feed small amounts once or twice daily.

Neon Tetras (Paracheirodon innesi) are one of the most iconic freshwater aquarium fish in the world. Their vibrant blue and red coloration, peaceful temperament, and small size make them a favorite for beginners and experienced aquarists alike. In this comprehensive guide, we’ll cover everything you need to know about Neon Tetra care—including tank setup, ideal water conditions, diet, tank mates, breeding tips, and common health concerns.

Neon Tetra with white background for a blog page on how to care for neon tetras

What Are Neon Tetras?

The Neon Tetra is a small schooling fish native to the clearwater and blackwater streams of the Amazon basin. Their shimmering neon blue stripe and bright red lower body give them an instantly recognizable appearance—perfect for adding color and movement to a community aquarium.

Neon Tetra Appearance and Size

Average size: 1.2–1.5 inches (3–4 cm)
Lifespan: 3–5 years with proper care
Coloration: Iridescent blue horizontal stripe and bright red stripe from mid-body to tail
Behavior: Peaceful, social, active schoolers

Their natural schooling behavior is part of what makes them so mesmerizing in a well-planted tank.

Ideal Tank Setup for Neon Tetras

Tank Size

While Neon Tetras are small, they must be kept in groups of six or more. For a proper school:

Minimum tank size: 10 gallons
Optimal tank size: 20 gallons or larger for a larger shoal

Water Parameters

These fish come from soft, acidic waters, so maintaining stable conditions is key:

Temperature: 22°C–26°C (72°F–79°F)
pH: 6.0–7.0
Hardness: Soft to moderately soft
Lighting: Soft, subdued lighting preferred

Adding driftwood or Indian almond leaves can help create a natural, Amazon-inspired environment.

Filtration

Neon Tetras prefer gentle water flow. A small sponge filter or low-flow hang-on-back filter keeps water clean without creating strong currents.

Aquascaping

They thrive in tanks that mimic their natural habitat:

Live plants (Java fern, Anubias, Amazon sword)
Dark substrate for better color contrast
Open swimming space at the front
Hiding spots among plants and driftwood

What Do Neon Tetras Eat?

Neon Tetras are omnivorous and will accept a variety of foods:

High-quality micro pellets
Flake food
Frozen or live foods (daphnia, brine shrimp, bloodworms)
Freeze-dried foods

For brighter coloration, include carotenoid-rich foods in their diet.

Feeding frequency:

Small portions once or twice daily
Only feed what they can eat within 2 minutes

Compatible Tank Mates for Neon Tetras

Neon Tetras do best with other peaceful community fish.

Great tank mate options:

Other small tetras (Ember, Cardinal, Glowlight)
Rasboras
Corydoras catfish
Small peaceful gouramis
Shrimp and snails

Tank mates to avoid:

Aggressive species
Fin-nippers
Large predatory fish like cichlids

Breeding Neon Tetras

Breeding Neon Tetras can be moderately challenging but rewarding.

Breeding requirements:

Separate breeding tank
Very soft, acidic water
Dim lighting
Spawning mops or fine-leaved plants

After spawning, remove adults to prevent them from eating the eggs. The eggs hatch in 24–36 hours, and fry should be fed infusoria or specialized fry food until they are large enough for micro pellets.

Common Neon Tetra Health Issues

1. Neon Tetra Disease (NTD)

A serious and often fatal disease caused by a parasite. Signs include fading color and clamped fins.

2. Ich (white spot disease)

Common in stressed fish; treat with elevated temperature and medication.

3. Stress from poor water conditions

Regular maintenance is the key to preventing illness.

How to keep them healthy:

Weekly water changes
Stable water parameters
Avoid overfeeding
Buy from reputable suppliers (like your store!)

Why Neon Tetras Are Perfect for Home Aquariums

Neon Tetras are easy to care for, visually stunning, and compatible with a wide array of community fish. Their schooling behavior and vibrant colors make them an ideal choice for aquascapes, planted tanks, or beginners looking for dependable, low-maintenance fish.