I have seen some in that 6-7 year range, not sure how long they really live though. 50 years seems crazy
I just googled 'how long do clownfish live' and got a range from 1 - 50 years. Apparently they live up to 50 yrs in the ocean but only about 8 in a tank. Why would they not live longer in a tank?
How old are your clowns?
I would be interested to know how they determined the 50 age range in the wild.