Can Black Neon Tetra live with Moonlight Gourami?
Light caution
Why
- Only a narrow water hardness overlap — keep both around 6–7.5 dGH.
- Large size gap (Moonlight Gourami 6" vs Black Neon Tetra 1.5") — watch that the smaller one gets its share at feeding time.
Sweet spot: both do well at 77–82°F and pH 6.5–7.5 — aim there.
Side-by-side
| Black Neon Tetra | Moonlight Gourami | |
|---|---|---|
| Temperature | 72–82°F | 77–86°F |
| pH | 5.5–7.5 | 6.5–7.6 |
| Hardness (GH) | 2–12 dGH | 6–7.5 dGH |
| Adult size | 1.5" | 6" |
| Temperament | Peaceful | Peaceful |
| Min tank | 15 gal | 55 gal |
Together, plan on at least 55 gallons.
How to make it work
- Target the overlapping water-parameter range and acclimate slowly.
Sort it with: GH remineraliser
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Design a tank with Black Neon Tetra, Moonlight Gourami →Everything compatible with Black Neon Tetra · …with Moonlight Gourami