What tank size is best for my goldfish, danio, and mystery snail?

Question

Hi I currently have 2 young goldfish, 1 Young zebra danio, and one black mystery snail! I own a 5.5 gallon tNk for my current fish and I know it isn’t big enough since I know hat goldfish can grow to a large size. What would be a suggested size gallon tank for my little fish family? Pet's info: Fish | Gold Fish

Dr. Elizabeth · Accepted Answer

The goldfish can get very big and may require a significantly larger tank as they grow and grow. As a rule of thumb, you need 1 gallon of water per inch of body length of fish. So if you have three 1 inch fish, you will need 3 gallons of water. I suspect you are at your max already in the smaller tank. Just so you know, most people do not have goldfish in tanks with tropical fish. You may consider getting two tanks One for your cold water fish like the goldfish, and one for your tropical fish that require a warm water temperature. For the goldfish I would suggest a minimum of a 20 gallon tank. For the Danio, I suggest to get a few more of these as they are schooling fish and a 10 gallon would be just fine. I hope this is helpful and please feel free to post any additional questions.

What tank size is best for my goldfish, danio, and mystery snail?

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