Can Cardinal tetra Live With Neon tetra?

Detailed assessment

Both Cardinal tetra and Neon tetra share a comfortable temperature range of 23.9–25°C (Cardinal tetra prefers 23.9–28.9°C, Neon tetra prefers 21–25°C). Their pH ranges overlap well at 5–6, so water chemistry is compatible. Both species have low aggression scores (Cardinal tetra: 1, Neon tetra: 1 out of 10), which supports peaceful cohabitation. Overall, these two species can coexist peacefully in a well-maintained community tank with appropriate space.