Can Cardinal tetra Live With Dwarf gourami?

Detailed assessment

Both Cardinal tetra and Dwarf gourami share a comfortable temperature range of 23.9–27°C (Cardinal tetra prefers 23.9–28.9°C, Dwarf gourami prefers 22–27°C). Their pH ranges overlap well at 6–6, so water chemistry is compatible. Both species have low aggression scores (Cardinal tetra: 1, Dwarf gourami: 3 out of 10), which supports peaceful cohabitation. The size difference is significant: Dwarf gourami reaches 8.8 cm while Cardinal tetra reaches only 3 cm, and the larger species may view the smaller one as prey. Note: fish 2x+ larger may eat smaller tankmates species with non-overlapping ph ranges may not thrive together With careful monitoring and adequate tank size these species can usually coexist, but be prepared to separate them if aggression or stress appears.