Can Siamese fighting fish Live With Otocinclus?

Detailed assessment

Both Siamese fighting fish and Otocinclus share a comfortable temperature range of 24–26°C (Siamese fighting fish prefers 24–30°C, Otocinclus prefers 21–26°C). Their pH ranges overlap well at 6–7.5, so water chemistry is compatible. Siamese fighting fish is moderately assertive (temperament score 5 out of 10) but generally tolerates peaceful tankmates like Otocinclus (score 1) when given enough space and cover. They occupy different water columns (Siamese fighting fish: middle, Otocinclus: bottom), which reduces direct competition for space. Overall, these two species can coexist peacefully in a well-maintained community tank with appropriate space.