what's the coolest water temperature a goldfish can thrive in?

Asked by joli (633

) October 14th, 2007

I keep my home very cool in the winter being conservative and unwilling to share my money with PG&E. However, I don’t want to kill the fish. Won’t the water be too cold if the therm says 60 degrees?

domestic pets

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3 Answers

According to this article, “it’s best to maintain them at 68 to 76° F. Because of their metabolic demands, the cooler water is best for their survival.”

sferik (6121

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Thanks! That was an informative article.

joli (633

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Water is at its densest at 4 degrees celsius (39F) I believe. This means that the bottom of an outdoor pond can be at 4ºC even when there’s ice on top. I’ve known goldfish survive in a frozen garden pond, as long as the ice doesn’t last too long (and you pierce it to allow noxious gases to escape).

sharl (424

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