Can Cardinal Tetra and Peacock Cichlid live together?

Cardinal Tetra and Peacock Cichlid are possible with care. The comparison on this page runs the same compatibility engine as the tank builder, checking temperature and pH overlap, predation by size, temperament, and known hard-pair conflicts.

Species Comparison

Cardinal Tetra vs Peacock Cichlid

Cardinal Tetra

Paracheirodon axelrodi

Peacock Cichlid

Aulonocara stuartgranti

Verdict:Possible with care

Side-by-side specs

Tetras

Family

Cichlids

2″

Adult size

6″

20gal

Min tank

55gal

73–81°F

Temperature

75–82°F

4.5–7

7.8–8.6

peaceful

Temperament

semi-aggressive

Schooling

Solitary

mid

Water level

mid

Compatibility notes

warnCardinal Tetra prefers pH 4.5–7, Peacock Cichlid prefers 7.8–8.6 — water chemistry mismatch.

Try both in the builder →Compare different species