Aqua Tools

Compatibility check

Can Pygmy cory and Zebra danio live together?

Pygmy cory and Zebra danio are not recommended together based on the current rule check.

not recommended

Quick answer

This pairing is not recommended by the current rules. The highest-risk factors are marked as fail below; fixable water-parameter overlap alone does not cancel out predation, aggression, fin-nipping, or explicit avoid-tag conflicts.

Factor breakdown

Factor Result Explanation
Water type OK Pygmy cory is freshwater; Zebra danio is freshwater. Compatibility pages are generated only for matching water types.
Temperature OK Temperature overlaps at 22-25 C. Pygmy cory is listed at 22-26 C; Zebra danio is listed at 18-25 C.
pH OK pH overlaps at 6.5-7.5. Pygmy cory is listed at 6-7.5; Zebra danio is listed at 6.5-8.
Hardness OK Hardness overlaps at 5-12 dGH. Pygmy cory is listed at 2-12 dGH; Zebra danio is listed at 5-20 dGH.
Adult size and predation OK Adult sizes are not an obvious predator-prey mismatch (Pygmy cory: 3.2 cm; Zebra danio: 5 cm).
Temperament and aggression Caution Pygmy cory is described as peaceful nano schooling; Zebra danio is described as peaceful active schooling. Watch for bullying, especially in small or sparsely decorated tanks.
Fin nipping risk OK The dataset does not flag this pair as a fin-nipper plus long-finned combination.
Schooling and group needs Caution Plan around full groups, not single display fish. Minimum group sizes: Pygmy cory: 8+; Zebra danio: 6+.
Explicit avoid tags Conflict Avoid-tag conflict found. Pygmy cory avoid tags matching Zebra danio: boisterous. Zebra danio avoid tags matching Pygmy cory: timid-nano-fish.
Minimum combined tank size OK Use at least 20 US gallons (76 L) for the pair, based on the larger minimum tank plus bioload and activity adjustments where relevant.

Species profiles

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Sources and attribution

Source links are verification references for taxonomy and identifiers. Care values are AI-generated from common hobby consensus and need expert review.