Tiger Barb and Guppy Compatibility
Tiger Barb and Guppy carry a clear risk: temperature ranges overlap at 72–79°F, yet temperament or size differences mean close supervision is essential. Plan on at least 20 gallons. Individual fish vary — observe behaviour during introduction.
Tiger Barb vs Guppy at a glance
| Aspect | Tiger Barb | Guppy |
|---|---|---|
| Adult size | ~3 in | ~1.8 in |
| Minimum tank | 20 gal | 10 gal |
| Temperature | 68–79°F | 72–82°F |
| pH | 6–7.5 | 6.8–7.8 |
| Temperament | semi-aggressive | peaceful |
| Swimming zone | middle | top |
| Group size | 6+ | 3+ |
| Care level | easy | easy |
Overlap in temperature: 72–79°F. Overlap in pH: 6.8–7.5.
Why this verdict
- Temperature: Shared range of 72–79°F.
- Water parameters: Shared pH range of 6.8–7.5.
- Temperament: Tiger Barb can be territorial; provide plants, sight breaks, and space.
- Adult size: Comparable adult sizes (~3" and ~1.8").
- Swimming zone: Complementary layers (middle + top) reduce competition for space.
- Schooling: Group sizes matter: Tiger Barb: keep at least 6; Guppy: keep at least 3.
- Tank size: Plan for at least 20 gallons to satisfy both species.
Main risks
- Occasional chasing or fin nipping is possible.
Recommended tank
Plan on 20 gallons or larger for this pair. Suitable sizes: 20 gallon High, 20 gallon Long, 29 gallon.
Group sizes: Tiger Barb: keep at least 6; Guppy: keep at least 3.
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 Tiger Barb and Guppy live together?
Our verdict is “Risky”. Tiger Barb and Guppy carry a clear risk: temperature ranges overlap at 72–79°F, yet temperament or size differences mean close supervision is essential. Plan on at least 20 gallons. Individual fish vary — observe behaviour during introduction.
What tank size do Tiger Barb and Guppy need?
Plan for at least 20 gallons so both species have their minimum space — Tiger Barb needs 20+ gal and Guppy needs 10+ gal. Adding length and cover reduces stress further.
What temperature do Tiger Barb and Guppy share?
Their comfortable ranges overlap at 72–79°F. Hold the tank near the middle of that band and avoid the extremes of either species' range.
What are the main risks keeping Tiger Barb with Guppy?
Occasional chasing or fin nipping is possible.
How many Tiger Barb and Guppy should I keep?
Tiger Barb: keep at least 6; Guppy: keep at least 3. Group sizes matter for shoaling fish — too few and they become stressed and nippy.
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