Ember Tetra and Molly Compatibility Overview
Ember Tetra and Molly can potentially coexist, but the combination requires careful attention. Their pH ranges do not meet: Ember Tetra wants 5.5โ7.0 and Molly wants 7.5โ8.5. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Ember Tetra | Molly | Verdict |
|---|---|---|---|
| Temperature | 73โ84ยฐF | 72โ82ยฐF | โ 73โ82ยฐF |
| pH Range | 5.5โ7.0 | 7.5โ8.5 | โ No overlap |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 0.8 in | 4 in | โ 5ร difference |
| Min. Group | 8+ | 3+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Ember Tetra โ Hyphessobrycon amandae
Tiny orange-red schooling tetra that is among the most adaptable nano fish. Peaceful with everything too small to eat them.
โ Full Ember 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 Ember Tetra live with Molly?
With significant caution and a larger tank. Ember Tetra and Molly can potentially coexist, but the combination requires careful attention. Their pH ranges do not meet: Ember Tetra wants 5.5โ7.0 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 Ember Tetra and Molly together?
A minimum of 75 gallons is recommended for keeping Ember Tetra and Molly together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Ember Tetra and Molly?
73โ82ยฐF โ inside Ember Tetra's 73โ84ยฐF and Molly's 72โ82ยฐF.
Is a Ember Tetra aggressive toward a Molly?
Ember Tetra is peaceful and Molly is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Ember 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. |