Can Guppy live with Black Kuhli Loach?
Light caution
Why
- Only a narrow pH overlap — keep both around 6.8–7.
- Only a narrow water hardness overlap — keep both around 8–10 dGH.
Sweet spot: both do well at 73–82°F and pH 6.8–7 — aim there.
Side-by-side
| Guppy | Black Kuhli Loach | |
|---|---|---|
| Temperature | 72–82°F | 73–86°F |
| pH | 6.8–7.8 | 5.5–7 |
| Hardness (GH) | 8–20 dGH | 2–10 dGH |
| Adult size | 2" | 3" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 20 gal |
Together, plan on at least 20 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 Guppy, Black Kuhli Loach →Everything compatible with Guppy · …with Black Kuhli Loach