NO!
Yes, as long as your tank is big enough for 3 goldfish. It should be at least 35 to 40 gallons in size even when your goldfish are babies.
Regardless of the type or size of goldfish the minimum acceptable size of an aquarium for a goldfish is 30 gallons. Buy a tank that is at least 30 gallons if you plan to have goldfish. You can comfortably fit 3 goldfish in a tank this size but no goldfish in a tank any smaller. Goldfish are essentially pond fish and need lots of space to swim; they will not thrive in a small aquarium.
The water in a goldfish bowl should be changed at least once a week to maintain the health of the fish.
at least three times daily
Goldfish grow to be very large (up to 12 inches)and live very long(20+years).A common goldfish should live in an aquarium that contains at least one gallon of water per inch of fish(a goldfish will be happier in aquariums larger than that).Fancy goldfish should have a minimum of 15 gallons per fish and won't do well in a tank smaller than 30 gallons.Goldfish are pond and large aquariumcreatures:they don't belong in a bowl!
To have one fancy goldfish you need to start off with at least a 20 gallon aquarium kit. This kit will come with a filter, filter media, the tank, and likely some decor. You also need to buy a bottle of water conditioner, and some fish food so you can begin cycle your aquarium to prepare it for the fish.
Goldfish can live a very long time provided that you take proper care of them.One goldfish needs a 20 gallon aquarium with a filter on it's own, and then it's another 10 gallons for every additional goldfish you want to add (so 3 goldfish means at minimum a 40 gallon aquarium).Along with regular weekly maintenance that includes changing at least 50% of the water, goldfish can live for a very long time.
If the fish is a coldwater species like a Goldfish it should really be in a pond. If the fish is tropical then it should be in an Aquarium. The size of the aquarium depends on the size and quantity of fish you wish to keep. The basic rule for keeping any fish healthy is "1 inch of fish needs at least 1 gallon of water , a cycled filter running full time and a 50% water change every week."
The aquarium should at least be by 24 (length) x 12 (width) x 16 (height)
One shake of fish flakes or two at least?
They definitely need a air pump, a filter, at least 20 gallons of water for one goldfish, a thermometer, and decorations to improve the goldfish's well-being/mood.
Goldfish cannot live in bowls. Fancy goldfish need at least 20 gallons for the first fish, and 10 gallons minimum for any additional goldfish. This means that for two goldfish, the smallest tank you should have is 30 gallons.