Usually a typical glass bowl from a local pet store will work
If the goldfish is a fancy variety, it can live alone in a 20 gallon tank. Goldfish do not belong in tanks any smaller than this as they grow very large
about 10 gal per fish
Goldfish need to mature before they can lay eggs and they can get pretty large (6" or more). By the time they are large enough, they have outgrown a fish bowl. So technically, the answer is no. You will need large goldfish in a large tank before you can breed them.
No, Goldfish belong with goldfish with a few exceptions such as weather (dojo) loaches, apple or mystery snails, or bristlenose plecos; but only if you have a large enough tank.
To prevent your goldfish from growing too large for its tank, make sure to provide a spacious tank with at least 20 gallons of water per goldfish. Avoid overfeeding them and maintain good water quality through regular water changes and proper filtration. Additionally, monitor their growth and consider upgrading to a larger tank if needed.
No actually. When I got my baby goldfish, he was fine in a large glass tank with a filter, a bunch of colorful rocks, and a bunch of decorations. Just don't put he/she in a tank with goldfish that are older, bigger, or goldfish that ur new baby goldfish just doesn't know because, believe it or not, goldfish can be aggressive. They can also be very territorial. I hoped I helped alot. Ur Welcome. :)
yes, as long as you have as your tank is large enough for them both.
10+ years but they will need a very large tank.
No,they are to small and not strong enough.
Yes
Intrusion..!
it doesn't really matter what kind of algae eater you get for the tank.In my experience with goldfish I've found that plecos work well although they get very big and will need to be kept in a very large tank.