Betta Fish and Moonlight Gourami Compatibility Overview
Betta Fish and Moonlight Gourami can potentially coexist, but the combination requires careful attention. Betta Fish is aggressive and Moonlight Gourami is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Betta Fish | Moonlight Gourami | Verdict |
|---|---|---|---|
| Temperature | 76โ82ยฐF | 77โ86ยฐF | โ 77โ82ยฐF |
| pH Range | 6.5โ7.5 | 6.0โ7.5 | โ 6.5โ7.5 |
| Temperament | aggressive | peaceful | โ Risk |
| Adult Size | 3 in | 5.9 in | โ Similar |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 55 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
Moonlight Gourami โ Trichopodus microlepis
The Moonlight Gourami is a beautiful freshwater fish known for its silvery blue color and red eyes. It is a peaceful community fish suitable for beginners and can thrive in a well-maintained aquarium. These fish are sensitive to water quality and require a spacious tank with plenty of swimming space.
Frequently Asked Questions
Can Betta Fish live with Moonlight Gourami?
With significant caution and a larger tank. Betta Fish and Moonlight Gourami can potentially coexist, but the combination requires careful attention. Betta Fish is aggressive and Moonlight Gourami is peaceful. Expect chasing and fin damage unless the tank is oversized, heavily planted, and watched closely. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Betta Fish and Moonlight Gourami together?
A minimum of 55 gallons is recommended for keeping Betta Fish and Moonlight Gourami together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Betta Fish and Moonlight Gourami?
77โ82ยฐF โ inside Betta Fish's 76โ82ยฐF and Moonlight Gourami's 77โ86ยฐF.
Is a Betta Fish aggressive toward a Moonlight Gourami?
Betta Fish is aggressive and Moonlight Gourami 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 Moonlight Gourami
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 100 gal | Best when keeping larger schools or reducing territorial pressure. |