Can Siamese fighting fish Live With Coolie loach?

Detailed assessment

Both Siamese fighting fish and Coolie loach share a comfortable temperature range of 24–29°C (Siamese fighting fish prefers 24–30°C, Coolie loach prefers 24–29°C). Their pH ranges overlap well at 6–6.5, so water chemistry is compatible. Siamese fighting fish is moderately assertive (temperament score 5 out of 10) but generally tolerates peaceful tankmates like Coolie loach (score 1) when given enough space and cover. They occupy different water columns (Siamese fighting fish: middle, Coolie loach: bottom), which reduces direct competition for space. Overall, these two species can coexist peacefully in a well-maintained community tank with appropriate space.