Lemon Tetra and Molly Compatibility Overview
Lemon Tetra and Molly can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Lemon Tetra | Molly | Verdict |
|---|---|---|---|
| Temperature | 68โ82ยฐF | 72โ82ยฐF | โ 72โ82ยฐF |
| pH Range | 5.0โ7.5 | 7.5โ8.5 | โ ๏ธ 7.5โ7.5 (narrow) |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1.6 in | 4 in | โ ๏ธ 2.5ร difference |
| Min. Group | 8+ | 3+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Lemon Tetra โ Hyphessobrycon pulchripinnis
The Lemon Tetra is a vibrant, peaceful addition to freshwater tanks. Known for its striking yellow and red colors, it is well-suited for community tanks. They are active swimmers and thrive in groups. Maintaining stable water conditions is key to their health.
โ Full Lemon 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 Lemon Tetra live with Molly?
With significant caution and a larger tank. Lemon Tetra and Molly can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Lemon Tetra and Molly together?
A minimum of 75 gallons is recommended for keeping Lemon Tetra and Molly together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Lemon Tetra and Molly?
72โ82ยฐF โ inside Lemon Tetra's 68โ82ยฐF and Molly's 72โ82ยฐF.
Is a Lemon Tetra aggressive toward a Molly?
Lemon Tetra is peaceful and Molly is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Lemon 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. |