Neon Tetra and Angelfish Compatibility
Neon Tetra and Angelfish are not recommended: temperature ranges overlap at 76–79°F, and the behavioural or size conflict is not solved by adding space. Plan on at least 30 gallons. Individual fish vary — observe behaviour during introduction.
Neon Tetra vs Angelfish at a glance
| Aspect | Neon Tetra | Angelfish |
|---|---|---|
| Adult size | ~1.2 in | ~6 in |
| Minimum tank | 10 gal | 30 gal |
| Temperature | 70–79°F | 76–84°F |
| pH | 5.5–7 | 6–7.5 |
| Temperament | peaceful | semi-aggressive |
| Swimming zone | middle | middle |
| Group size | 6+ | 2+ |
| Care level | easy | moderate |
Overlap in temperature: 76–79°F. Overlap in pH: 6–7.
Why this verdict
- Temperature: Shared range of 76–79°F.
- Water parameters: Shared pH range of 6–7.
- Temperament: Angelfish can be territorial; provide plants, sight breaks, and space.
- Adult size: Angelfish grows to ~6" and may see Neon Tetra (~1.2") as food.
- Swimming zone: Both are middle-dwelling, but peaceful — sharing the layer is fine with cover.
- Schooling: Group sizes matter: Neon Tetra: keep at least 6; Angelfish: keep at least 2.
- Tank size: Plan for at least 30 gallons to satisfy both species.
Main risks
- Occasional chasing or fin nipping is possible.
- Predation risk as the larger species matures.
- Adult angelfish routinely eat adult neon tetras — neons are natural prey in the wild.
- Angels also grow tall and territorial in community tanks.
Recommended tank
Plan on 30 gallons or larger for this pair. Suitable sizes: 30 gallon, 40 gallon Breeder, 40 gallon Long.
Group sizes: Neon Tetra: keep at least 6; Angelfish: keep at least 2.
Sources
- FishBase — Scientific Database · Primary / scientific · https://www.fishbase.se/
- SeriouslyFish — Specialist Publication · High authority · https://www.seriouslyfish.com/
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
- FishBase — Scientific Database · Primary / scientific · https://www.fishbase.se/
- SeriouslyFish — Specialist Publication · High authority · https://www.seriouslyfish.com/
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
- Aquarium Forge editorial guidelines — Editorial Interpretation · Editorial interpretation
Compatibility verdicts are planning guidance, not guarantees — individual fish vary. Rule version 1.1 · Data reviewed: .
Frequently asked questions
Can Neon Tetra and Angelfish live together?
Our verdict is “Not Recommended”. Neon Tetra and Angelfish are not recommended: temperature ranges overlap at 76–79°F, and the behavioural or size conflict is not solved by adding space. Plan on at least 30 gallons. Individual fish vary — observe behaviour during introduction.
What tank size do Neon Tetra and Angelfish need?
Plan for at least 30 gallons so both species have their minimum space — Neon Tetra needs 10+ gal and Angelfish needs 30+ gal. Adding length and cover reduces stress further.
What temperature do Neon Tetra and Angelfish share?
Their comfortable ranges overlap at 76–79°F. Hold the tank near the middle of that band and avoid the extremes of either species' range.
What are the main risks keeping Neon Tetra with Angelfish?
Occasional chasing or fin nipping is possible. Predation risk as the larger species matures. Adult angelfish routinely eat adult neon tetras — neons are natural prey in the wild. Angels also grow tall and territorial in community tanks.
How many Neon Tetra and Angelfish should I keep?
Neon Tetra: keep at least 6; Angelfish: keep at least 2. Group sizes matter for shoaling fish — too few and they become stressed and nippy.
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