Your unidentified cichlid is a juvenile Gold Saum, commonly known in fish stores as a "Green Terror". It's too young to tell if it's a male or female, but males easily reach 10" in length and are aggressive. Females may or may not have aggression issues but in general are less aggressive than males, and also grow smaller. If it's a female I think you may be all right keeping her and maybe one firemouth in your 55-gallon tank. If it's a male then he might outgrow that tank and need something a little wider like a 75g tank. If you want to keep him in the 55g, he might get too aggressive to tolerate any tankmates and your firemouths may be in trouble.Jordan_86 said:Here he is blurry because he is so entergentic he wont stop moving
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