Stumbling through life in Japan.
Ooh. Do you have products for the tank water? Welcome to the guilt-stricken world of improvised fish keeping.
I changed the water every week..more in summer (they could be overheating)..
or they could just be cheap matsuri inbred goldfish like ours were. Last about 24 hours before two carked it and i couldn't handle the responsibility so I threw the others in the river where I figured they had more chance of survival :D
Carnival fish either live 10 minutes or 10 years.