It is recommended to have at least 20 gallons of water to house 2 goldfish.
Typically, it is recommended to start with one goldfish for every 20 gallons of water in a small aquarium. So, for a small aquarium of 10 gallons, you would need one goldfish to start.
Two goldfish typically require a minimum of 10 gallons of water to thrive.
1 goldfish. It may seem tiny now, but they grow up to be around 6 inches. Add 10 gallons for each additional goldfish. Example: 20 gallons + 2 more goldfish (10 gallons) = 40 gallons and 3 goldfish total.
One goldfish needs at least 20 gallons, and then it's an additional 10 gallons per goldfish added after (so 30 gallons for 2 goldfish).This is not only because of the size that they can grow, which is big, but also because they are messy fish and produce a high amount of waste
The number of goldfish that can live together in a single tank depends on the size of the tank and the type of goldfish. In general, it is recommended to have 20 gallons of water per goldfish to ensure they have enough space to swim and thrive. It is best to research the specific needs of the type of goldfish you have and consult with a pet store or veterinarian for guidance on the appropriate number for your tank.
None; that would work for one betta fish, but not a goldfish.One goldfish needs 20 gallons alone, plus 10 gallons per additional fish (so 30 gallons for 2 goldfish).It's not just about their size potential, but the fact that they produce a high amount of waste.
20 gallons for one fish and 10 gallon for each addition goldfish. See the related link for further information.
I would personally say none, not for their entire lives anyway. You may get away with 2 Fancy Goldfish juveniles for a couple of months, but really Fancy Goldfish need a minimum of 20 gallons each and Common/Comet Goldfish a minimum of 55 gallons each for their entire lives! They get very big, are very messy and need a lot of water volume!
None. Goldfish should have a minimum of ten gallons of water per fish if you wish for them to live out their full lifespan of ~20 years.
Fancy goldfish need at minimum 20 gallons for one fish, plus 10 gallons for each additional goldfish you are adding (thus 30 gallons for 2 goldfish); so the answer to your question is dependant on the size of your tank.
One goldfish requires at minimum 20 gallons not only because of their size potential, but because they are very messy fish and produce a high amount of waste
The rule is 1 inch per gallon. So if a fish is 2 inches then it gets 2 gallons, and so on. Also know that goldfish are extremely dirty fish and for a small 5 gallon tank it would be best to have only 1 or 2.