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
You need to provide 1 gallon of water per inch of fish. Goldfish get along fine with other goldfish.
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Depending on what your sick goldfish has, it will either be specific to that fish, which you should place in a separate tank to treat, or it's something that will spread to other fish in your tank, in which case you will need to treat them all.
That you need a new goldfish
Yes.
I am sure the meaning is quite literal. They are goldfish that eat other goldfish.
Other goldfish, preferably This will ensure that the goldfish will not be injured by other tankmates and also ensures that the other tankmate's gills are not damaged by the large amounts of toxic wastes (ammonia) that the goldfish produces daily.
Yes they can. In small amounts though because you need to minimize the waste when it comes to goldfish. I would recommend feeding them every OTHER day.
yes
there are three basic breeds: fantail goldfish, comet goldfish, and common goldfish. if you are getting goldfish for the first time, i would recommend common goldfish as they need the least care.
It's not uncommon for goldfish to hang around each other in a tank; sometimes they don't bother with each other, and other times they are bumping into each other.
No. A goldfish can only breed with other Carassiusspecies.