One goldfish requires at minimum 20 gallons on it's own plus 10 gallons for each additional goldfish (30 gallons for 2 goldfish). It's not only because of how big they can grow, but because they are very messy fish & produce a high amount of waste
It would be best to keep none in the bowl and buy a fish tank. Goldfish are very dirty fish and need a good sized aquarium with a filter. If you do keep them in a bowl you need to change the water daily.
it is better to have two goldfish because they are lonely mother f@#kers that need friends so have two so they can be friends and not be loners
Yes.
not better in groups
Normally goldfish are peaceful and calm.But incase your goldfish is doing so then its better to separate the new goldfish.
It depends, if the goldfish are all males (or females) no, but if not of course they can mate.
Yes. It should be fine. I have 2 regular goldfish living with a bubble eye goldfish and to fancy fantail goldfish, so I think it will be okay.
Yes, goldfish can survive without food for two days.
cause it can breath better
no. i have had two big comet goldfish with my, little 2 inch fish, and they never ate him.
The answer is no. People usually think that goldfish get lonely and depressed. This is not true. Goldfish are fine on their own! People usually prefer 2 or more
That is a matter of personal preference. Read the ingredients on the label and make your decision based on the higher the amount of protein the better the food is for goldfish.
cold is better cuz when your in the ocean is the water hot or cold cold
Yes, the bigger tank the better. They actually HATE goldfish bowls. (they're not nearly big enough). Goldfish usually need a 20 to 30 gallon tank