Freshwater
I think it's fresh but go to like a pet shop and ask
Goldfish can live perfectly fine in tap water.
No, if you put a goldfish in hot water it will die.
Yes, use a water conditioner that destroys both chlorine and chloramine, and if you can find one that destroys ammonia too- well that's a bonus.
Fresh water
they need ocean water:) because they need "SALTY" type of water:)
No, it is a sign of bad water quality and possible ammonia poisoning. Try testing your water and doing a 75% water change if it gets worse.
Grizzly bear need fresh water.
No, not only are bettas best as a solitary fish, but their needs are different including food and water temperatures.
Carassius auratus
fresh water. i beleive. i think.
water from a faucet WITH A FEW DROPS OF WATER CONDITIONER
African Bull-frogs need fresh water to survive.
Goldfishes usually eat tiny bits of vegetables or meat...