Can Firemouth cichlid Live With Jack Dempsey?

Detailed assessment

Both Firemouth cichlid and Jack Dempsey share a comfortable temperature range of 20–30°C (Firemouth cichlid prefers 20–32°C, Jack Dempsey prefers 20–30°C). Their pH ranges overlap well at 6.5–8, so water chemistry is compatible. Jack Dempsey has a temperament score of 4 (out of 5), which means it can be territorial or aggressive toward Firemouth cichlid (score 3). Note: multiple territorial species in the same swim layer cause stress. With careful monitoring and adequate tank size these species can usually coexist, but be prepared to separate them if aggression or stress appears.