Can Cardinal tetra Live With Ram cichlid?

Detailed assessment

Both Cardinal tetra and Ram cichlid share a comfortable temperature range of 27–29°C (Cardinal tetra prefers 23–29°C, Ram cichlid prefers 27–30°C). Their pH ranges overlap well at 4–7, so water chemistry is compatible. Ram cichlid is moderately assertive (temperament score 3 out of 5) but generally tolerates peaceful tankmates like Cardinal tetra (score 1) when given enough space and cover. Overall, these two species can coexist peacefully in a well-maintained community tank with appropriate space.