(Chinadian) wrote in message . com...
You will be amazed how some fish can live in bad conditions. I have a friend
who has gold fishes in a outdoor pan: 20-30gallon. It is full of algae.
Changes 1/3 water every 3 months. Never bring it indoor during winter (as
cold as 25F). Food is only leftover rice from table. The gold fishes live
forever. At least for what I know more than 10 years.

Believe it or not, these conditions are actually quite good for
goldfish. The algae removes much of the ammonium and nitrate from fish
wastes and oxygenates the water. There will be other food sources than
the rice.