Royal Tetra

Characidae sp.

Royal Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 14.5 US gal min; aim for 75–81°F and pH 5.5–7.5. Royal Tetras are perfect for aquarists seeking a vibrant, peaceful shoaling species with an engaging presence.

Royal Tetra (Characidae sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size14.5 US gal min
pH range5.5–7.5
Temperature75–81°F
Max size1.4 in (3.5 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.

Royal Tetra Tank Setup

Create a spacious layout with ample open swimming areas complemented by floating plants and other cover to encourage natural behaviors. Maintain a gentle water flow and choose a substrate that mimics their natural habitat, ideally dark to enhance coloration. Lighting should be moderate, allowing for shaded areas that promote comfort and security.

What Do Royal Tetras Eat?

Royal Tetras have a moderate feeding speed and thrive on a varied diet of micro foods. Ensure that smaller, fine particles are available to minimize competition during feeding times.

Royal Tetra Tank Mates

These tetras are highly compatible with other small, peaceful species that share similar swimming zones and temperaments. Ideal tank mates include small rasboras and other non-aggressive tetras. Avoid larger or more aggressive fish that might intimidate them, and ensure intraspecies groups are kept to a minimum of six to prevent isolation and stress.

Are Royal 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 the importance of group size, leading to stressed fish in smaller shoals. overlooking the need for environmental enrichment can result in lethargy and behavioral issues.

Building a community? Run the full list through the stocking calculator before you add anything else.

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