Neon Tetra

Paracheirodon innesi

Neon Tetra (Paracheirodon innesi) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 10.6 US gal min; aim for 70–77°F and pH 5.5–7.5. Neon Tetras appeal to both newcomers and seasoned aquarists thanks to their vibrant colors and ease of care.

Care levelEasy

TemperamentPeaceful

Min tank size10.6 US gal min

pH range5.5–7.5

Temperature70–77°F

Max size1.5 in (3.8 cm)

Captive lifespan3–6 years

SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Mostly South America

South America

Regional colours match the stocking calculator’s origin map.

Neon Tetra Tank Setup

Create a balance between open swimming areas and dense plant cover to mimic their natural habitat. A gentle water flow is preferable to prevent stress, and a dark substrate can enhance their coloration. Varied lighting, with some shaded areas, encourages natural behaviors and contributes to a vibrant display.

What Do Neon Tetras Eat?

Being omnivores, they prefer small micro foods and will compete for food if not adequately provided. Feeding small amounts multiple times a day can help maintain vibrant colors and overall health.

Neon Tetra Tank Mates

Neon Tetras thrive in peaceful community tanks, pairing well with similarly sized, non-aggressive species like small rasboras or peaceful bottom dwellers. Larger, territorial fish can pose a threat, leading to stress or aggression. Intraspecies, they should be kept in groups of at least six to foster their natural shoaling instinct and minimize anxiety.

Are Neon Tetras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate their social needs, leading to stress in smaller groups. neglecting water quality and parameters can lead to health issues.