Can Neon tetra Live With Sumatra barb?

Detailed assessment

Both Neon tetra and Sumatra barb share a comfortable temperature range of 22–25°C (Neon tetra prefers 21–25°C, Sumatra barb prefers 22–26°C). Their pH ranges overlap well at 6–7, so water chemistry is compatible. Both species have low aggression scores (Neon tetra: 1, Sumatra barb: 1 out of 10), which supports peaceful cohabitation. The size difference is significant: Sumatra barb reaches 7 cm while Neon tetra reaches only 2.5 cm, and the larger species may view the smaller one as prey. Note: fish 2x+ larger may eat smaller tankmates With careful monitoring and adequate tank size these species can usually coexist, but be prepared to separate them if aggression or stress appears.