our goldfish died :(

Two of our fat goldfish died today. :(

So we only left with one gold fish now and 6 Japanese koi.

Normally goldfishes have a long lifespan,they could live between 8 to 10 years .

Those dead fish were just over two years old. A friend told me to seperate the koi

and keep the goldfish by itself..??

I think I need to check the water temperature beforehand, something must have gone wrong?.

Will get another gold fish when we come back from the holiday. Peace!