Goldfish can winter under the ice in ponds provided there is an area of the surface kept free of ice where there can be a free exchange of gasses between the water and the air. So the answer is they can live in water just above freezing.
cold is better cuz when your in the ocean is the water hot or cold cold
Goldfish can not be pregnant. They lay eggs (spawn) in Springtime when the water temperature starts to warm up towards 70F.
It is not adviseable!
Goldfish are meant to live in cold water, not the warm water in a tropical aquarium. This is a huge reason why goldfish and tropicals shouldn't be in the same tank.
Don't take a goldfish out of water.
Depends on the temperature
the water temp. must be quite warm
Goldfish are all coldwater species no matter what their fancy name. They breed at around 70F so they should be kept under that temperature most of the time. (Between 55F and 65F is OK for goldfish)
Goldfish are best kept at a temperature of at least 74F to 76F. There are times that you might increase the temperature to a tropical fish level for a short term to treat an illness, but you should not have it too warm.
The water in a goldfish bowl should be changed at least once a week to maintain the health of the fish.
Yes. They probably do. They are coldwater fish, so probably.
Warm.