Japanese koi and Goldfish are kept together in a 2.5 feet aquariumRanchu Goldfish and Oranda Goldfish with small Japanese koisTrue Pets AquaSong: Ikson - Any...
well we just got two Goldfish,and a 2x small round tank to start with. my sister has one fish in her room and i have one in mine. only,i noticed my goldfish keep going to the top of the tank and like blowing out of the water...

Moving forward, it's essential to keep these visual contexts in mind when discussing Keeping 2 Goldfish In A Small Tank.
Fancy goldfish are slightly smaller than common goldfish and require less space. Minimum tank dimensions for a fancy goldfish are 3 feet in length and 20 gallons in volume. If you intend to keep multiple goldfish in your tank, add 10 gallons for each additional fish.
It is possible for the two to live together, though most clawed frogs are tropical in nature they can withstand the colder water of goldfish. Some frogs get rather large in size and will outgrow most of the smaller goldfish tanks.
You can keep about 24 fish in a tank this size, as long as each fish is not larger than 1 inch.Can 2 goldfish live in a 2.5 gallon tank? 2.5 gallon tanks are far too small for goldfish for several reasons.