Goldfish are easy pets to keep.
For them to live through their short life span of 10-20 years, you just need space for a 28+ gallon tank (bigger is better) that's at least 4 feet long so the fish can grow to its proper length at over 1 foot long and the tank has been already cycled for several weeks with a strong filter to deal with the high ammonia and help oxygenate the water, and the temperatures are kept low. Extra fish will be just 10 extra gallons, some goldfish can get lonely.
Don't put them in bowls, that's just putting a baby in a portapotty for life.
For them to live through their short life span of 10-20 years, you just need space for a 28+ gallon tank (bigger is better) that's at least 4 feet long so the fish can grow to its proper length at over 1 foot long and the tank has been already cycled for several weeks with a strong filter to deal with the high ammonia and help oxygenate the water, and the temperatures are kept low. Extra fish will be just 10 extra gallons, some goldfish can get lonely.
Don't put them in bowls, that's just putting a baby in a portapotty for life.