Betta Fish and Black Phantom Tetra Compatibility Overview
Betta Fish and Black Phantom Tetra can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Betta Fish is aggressive and Black Phantom Tetra is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 20 gallons), dense planting, and close monitoring are essential.
| Factor | Betta Fish | Black Phantom Tetra | Verdict |
|---|---|---|---|
| Temperature | 76โ82ยฐF | 68โ82ยฐF | โ 76โ82ยฐF |
| pH Range | 6.5โ7.5 | 5.0โ7.0 | โ ๏ธ 6.5โ7.0 (narrow) |
| Temperament | aggressive | peaceful | โ Risk |
| Adult Size | 3 in | 1.4 in | โ ๏ธ 2.1ร difference |
| Min. Group | 1+ | 8+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Betta Fish โ Betta splendens
Vibrant labyrinth fish from Southeast Asia. Males are highly territorial toward other bettas and fin-nippers; compatible with many peaceful species in large, planted tanks.
โ Full Betta Fish care guide
Black Phantom Tetra โ Hyphessobrycon megalopterus
The Black Phantom Tetra is a popular freshwater fish known for its striking black and silver coloration. It is generally peaceful and can be kept in a community tank with other non-aggressive species. They require a well-maintained tank with a moderate water flow and a good cover of plants.
Frequently Asked Questions
Can Betta Fish live with Black Phantom Tetra?
With significant caution and a larger tank. Betta Fish and Black Phantom Tetra can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. Betta Fish is aggressive and Black Phantom Tetra is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 20 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Betta Fish and Black Phantom Tetra together?
A minimum of 20 gallons is recommended for keeping Betta Fish and Black Phantom Tetra together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Betta Fish and Black Phantom Tetra?
76โ82ยฐF โ inside Betta Fish's 76โ82ยฐF and Black Phantom Tetra's 68โ82ยฐF.
Is a Betta Fish aggressive toward a Black Phantom Tetra?
Betta Fish is aggressive and Black Phantom Tetra is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely.
Related Compatibility Guides
Tank Size for Betta Fish and Black Phantom Tetra
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 55 gal | Best when keeping larger schools or reducing territorial pressure. |