Black Phantom Tetra and Molly Compatibility Overview
Black Phantom Tetra and Molly can potentially coexist, but the combination requires careful attention. Their pH ranges do not meet: Black Phantom Tetra wants 5.0โ7.0 and Molly wants 7.5โ8.5. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Black Phantom Tetra | Molly | Verdict |
|---|---|---|---|
| Temperature | 68โ82ยฐF | 72โ82ยฐF | โ 72โ82ยฐF |
| pH Range | 5.0โ7.0 | 7.5โ8.5 | โ No overlap |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1.4 in | 4 in | โ ๏ธ 2.9ร difference |
| Min. Group | 8+ | 3+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
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.
โ Full Black Phantom Tetra care guide
Molly โ Poecilia sphenops
Hardy livebearers that prefer alkaline, hard water โ sometimes slightly brackish. Prolific breeders; peaceful community fish.
Frequently Asked Questions
Can Black Phantom Tetra live with Molly?
With significant caution and a larger tank. Black Phantom Tetra and Molly can potentially coexist, but the combination requires careful attention. Their pH ranges do not meet: Black Phantom Tetra wants 5.0โ7.0 and Molly wants 7.5โ8.5. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Black Phantom Tetra and Molly together?
A minimum of 75 gallons is recommended for keeping Black Phantom Tetra and Molly together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Black Phantom Tetra and Molly?
72โ82ยฐF โ inside Black Phantom Tetra's 68โ82ยฐF and Molly's 72โ82ยฐF.
Is a Black Phantom Tetra aggressive toward a Molly?
Black Phantom Tetra is peaceful and Molly is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Black Phantom Tetra and Molly
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |