Since this thread/poll has been resurected I thought I'd post an update. It will be 10 years next month (in Sept) that I have had mine - still fat & healthy. :biggrin:

I think it's great when a thread like this comes back from the deep black hole of the forum. Useful info on life expectancy of the fishes.

My yellow tang is now 9 years in the tank.

Nearly twenty and still going.

20! That is awesome. Mine is 10.5 years now.

how big does an elderly, tank raised yellow tang end up being?

Generally the size of the fish is related to the size of the tank. My yellow tang was over 20 years old when it died 4 months ago. Who knows how old she was when I got her in 1997. Most of her fins were gone from the battles she lost many years ago. A 20 year old yellow tang is about the size of any adult yellow tang no bigger and only smaller if housed in a small tank.

I have a male clown fish that I have had for at least 21 years and he is still tiny because the female (over twice the size) is 22. They are both still doing well. It has been about a year since they laid their last batch of eggs.

Mine has now turned 11 years old.