Glowlight Tetra and Swordtail Compatibility Overview
Glowlight Tetra and Swordtail 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. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Glowlight Tetra | Swordtail | Verdict |
|---|---|---|---|
| Temperature | 75โ82ยฐF | 65โ80ยฐF | โ 75โ80ยฐF |
| pH Range | 5.5โ7.5 | 7.0โ8.3 | โ ๏ธ 7.0โ7.5 (narrow) |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1.6 in | 5 in | โ ๏ธ 3.1ร difference |
| Min. Group | 6+ | 3+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Glowlight Tetra โ Hemigrammus erythrozonus
The Glowlight Tetra is a vibrant, peaceful community fish known for its silver body and bright red-gold highlights. It thrives in a well-planted tank with plenty of swimming space and a gentle water flow. These tetras are easy to care for and are suitable for beginners.
โ Full Glowlight Tetra care guide
Swordtail โ Xiphophorus hellerii
Hardy livebearer with a distinctive elongated lower tail fin in males. Peaceful community fish that tolerate a wide temperature range.
Frequently Asked Questions
Can Glowlight Tetra live with Swordtail?
With significant caution and a larger tank. Glowlight Tetra and Swordtail 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. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Glowlight Tetra and Swordtail together?
A minimum of 75 gallons is recommended for keeping Glowlight Tetra and Swordtail together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Glowlight Tetra and Swordtail?
75โ80ยฐF โ inside Glowlight Tetra's 75โ82ยฐF and Swordtail's 65โ80ยฐF.
Is a Glowlight Tetra aggressive toward a Swordtail?
Glowlight Tetra is peaceful and Swordtail is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Glowlight Tetra and Swordtail
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. |