until this past year, I had some 30g tanks that were setup from 1990 right up until 1008 and a 90g that was going from 1993 to 2008. so around 18 years is the oldest I have had continuous, with no reseal. I have yet to reseal a tank.
dawnmarie;3747731; said:My 240 was custom made in 1978 for my neighbor and has been in continuous use ever since, with the exception of 1 week during the move from his house next door to mine.