How long will angelfish live?
They are a cold-blooded animal, so their metabolism is controlled by the temperature. High temperature equals high metabolism, and a high metabolism seems to “burn them out” quickly. Consequently, their life span will vary with the temperature they are kept at. Angelfish appear to have a maximum life span in the range of 10-12 years. To achieve this, you will probably have to keep them in the mid seventies. Keep in mind that low temperatures will increase life span, but will also decrease spawning frequency and leave their immune system less responsive.