The longest living fish in my tank is not cichlid, but three clown loaches. I have them for over 8 years, still growing and showing no sign of aging. I read that they don't even reach sexual maturity until they are 10+ years old and a foot long. Mine are between 6 to 7 inches, so still a long way to go.
Most cichlids have life expectancy under 7 years. For long live fish, try Koi and Arrowana which can live for 100 years.
8yrs is a long time! Any pictures?
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