yes
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.
Water.
In waterin the water
no
Yes, two goldfish can live together in the same tank as long as the tank is large enough to accommodate both fish and there is enough space for each fish to swim comfortably. It is important to provide proper filtration and regular water changes to maintain good water quality for the goldfish.
I wouldn't think so as goldfish can't live in salt water.
The fresh water part .... Goldfish apparently come from Asia, however they don't live in the ocean because goldfish are fresh water fish.
Yes
A goldfish.
water
No unless you want a cooked Goldfish!
Goldfish and turtles should not be kept together in the same tank. Goldfish require cooler water temperatures and clean water, while turtles need warmer temperatures and may carry bacteria harmful to fish. Mixing them can lead to health issues for both species.