Originally posted by beaslbob
Come on bang. Is that why I have had fish live 4 years.
Exactly!!!
This is also why I had difficulty keeping fish long term in the 70's & early 80's.
This is all my opinion:
After 4 or 5 years to toxins built up in our fish reach a point where their immune system breaks down and then die of the first disease or infected scratch. I believe this because I've seen & experience it. Fish that should be thriving for decades were dying from minor scratches after only 5 or 6 years.
Out of opinion mode.
After performing regular water changes and topping off with water void of Tin, Aluminum, Copper, Lithium, etc. I've been able to keep fish a lot longer, MANY times longer. In fact, other than carper surfers, I can't remember losing a fish over the past 15 years that didn't exceed it's average wild lifespan.
Bottom line Bob, You've been in the hobby longer than I have (so you say) and yet you've only had fish live to four years?
Trying to mentally count my fish, I have a couple 10 year olds, a 6 year old pair of Banggai (they only live to be 4 or 5 in the wild), several 5 year old offspring from those Banggai, a 5 year old Mandarin and her 4 year old mate, a 5 year old Flame, 4 year old Coral Beauty, oh, forgot the 7 year old Yellow Tang that I fully expect to live 40 or 50 more years.
I suppose if your expectations are low then dosing your fish with a slow poison is fine. You can always buy more fish.