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Cardinal Tetra Aquarium Care Guide

Paracheirodon axelrodi

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Keeping Cardinal Tetra in an aquarium requires the right conditions.

Aquarium Information

  • Care level: intermediate
  • Temperament: peaceful
  • Diet: omnivore
  • Minimum tank size: 15 gallons (57 liters) for a small school
  • Compatibility: Excellent for community tanks with other small, peaceful, soft-water fish such as other tetras, dwarf cichlids, corydoras, and rasboras. Avoid housing with large or aggressive fish that may prey on them.
  • Special requirements: Requires a well-established aquarium with dense planting, driftwood, and subdued lighting to mimic its natural blackwater habitat. A dark substrate can enhance their coloration. They thrive in schools of 6 or more individuals, which reduces stress and encourages natural schooling behavior. Excellent water quality with regular small water changes is crucial.

Water parameters

Temperature
23-27°C (73-81°F)
pH level
4.5-6.5
Hardness
1-8 dGH

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