I particularly like this line,
"My last goldfish was fine, he lived happily for two years"
If the goldfish was maybe 18 years when purchased, then I might have time for this oft-touted line… A goldie when kept correctly should be reaching a good 20 years or so at the least. For a goldfish to be dying within two years, or sometimes earlier than this, is indicative of a major problem that needs to be addressed before yet another fish goes of to die in its infancy.
Read more here –
http://www.practicalfishkeeping.co.uk/content.php?sid=3880