Can Cardinal tetra Live With Ram cichlid?

Detailed assessment

Both Cardinal tetra and Ram cichlid share a comfortable temperature range of 27–28.9°C (Cardinal tetra prefers 23.9–28.9°C, Ram cichlid prefers 27–30°C). Their pH ranges overlap well at 5–6, so water chemistry is compatible. Both species have low aggression scores (Cardinal tetra: 1, Ram cichlid: 3 out of 10), which supports peaceful cohabitation. Overall, these two species can coexist peacefully in a well-maintained community tank with appropriate space.