To be honest I do not know what it is. Kind of hate to think of all the young uns I have killed over the years. I think about 5 years in the wild and up to about 10 years in captivity is doing well. Too often aggression or equipment failure has stopped em for me. My oldest Troph a female surprisingly enough was 12 years old when she finally gave up or rather I popped her into a tank that was too rough for her. Dunno but 4 foot tanks etc are OK for breeding but for a colony I have had most success with a 200g 7x2x2 foot tank. Sadly even that failed when small fingers switched off the filter for one week when I was not around. I tend to think the smaller the tank and the lower the numbers the shorter the life on average. Though singles can go on for years. A successful group is about 5 years. Not succeeded at this in under a 60" tank yet myself.
All the best James
Discussion regarding only Lake Tanganyika species.
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