Aquarium fish life span is not known
Photo credit: AP | A father holding his son look at fish swimming in a tank at the Creta Aquarium in the city of Heraklion, on the Greek island of Crete. (Dec. 17 2011)
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Q. We have a 30-gallon tank in our living room with red parrot fish and silver dollars. The same fish have been in it now for more than 7 years. I was wondering how long these fish can live and what is their natural life span? --Lance Backos, Holtsville
A. We really do not know the natural life span of many fish as it is hard for us to track them from birth to a death of old age in a natural...
