Can Pygmy Cory live with Colombian Zebra Pleco?
Light caution
Why
- Only a narrow water hardness overlap — keep both around 6–7.5 dGH.
- Large size gap (Colombian Zebra Pleco 3.5" vs Pygmy Cory 1") — watch that the smaller one gets its share at feeding time.
Sweet spot: both do well at 77–79°F and pH 6.5–7.5 — aim there.
Side-by-side
| Pygmy Cory | Colombian Zebra Pleco | |
|---|---|---|
| Temperature | 72–79°F | 77–82°F |
| pH | 6–7.5 | 6.5–7.6 |
| Hardness (GH) | 2–12 dGH | 6–7.5 dGH |
| Adult size | 1" | 3.5" |
| Temperament | Peaceful | Peaceful |
| Min tank | 10 gal | 30 gal |
Together, plan on at least 30 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 Pygmy Cory, Colombian Zebra Pleco →Everything compatible with Pygmy Cory · …with Colombian Zebra Pleco