Q:

Why do goldfish swim upside down?

A:

Quick Answer

Goldfish swim upside down when they have swim bladder disease. Goldfish and other species of fish may also swim sideways or do not have the ability to swim to the bottom of the tank if they have this disease.

Know More
Why do goldfish swim upside down?
Credit: Benson Kua CC-BY-2.0

Full Answer

Also called "swim bladder disorder," "floating disorder," and "SBD," this disease typically occurs when a fish's swim bladder has be compressed due to overeating, rapidly eating or gulping air. A fish's environment can also cause swim bladder disease. If the water temperature in a fish tank is too low, the digestive process slows down and can cause the intestines to become enlarged. The enlarged intestines then compress the fish's swim bladder. Less common causes of swim bladder disease includes kidney cysts, egg binding, fatty deposits in the liver, bacterial infections, parasites and other enlarged organs that put pressure on the swim bladder.

Swim bladder disorder is treatable. Fish owners should make sure the water temperature in the tank is at or close to 80 F, and they should lower the water level to make it easier for the fish to reach the surface. They should not feed the fish for three days. Then, the owner removes the skin from a cooked pea to feed to the fish. Owners can feed their fish a pea instead of flakes until it is swimming normally. If needed, owners can hand-feed fish and provide broad spectrum antibiotics.

Learn more about Aquatic Pets

Related Questions

  • Q:

    Do goldfish eat each other?

    A:

    Although there is little proof, rare cases have indicated the possibility of cannibalism in goldfish. The National reported an incident in which goldfish ate other fish after an earthquake, leaving them of food for an extended period of time.

    Full Answer >
    Filed Under:
  • Q:

    Why would a fish swim frantically?

    A:

    A frantically swimming fish is likely experiencing significant stress. Other stress symptoms include hitting the bottom of the tank, locking its fins to its side, and rubbing itself on gravel or rocks.

    Full Answer >
    Filed Under:
  • Q:

    How long do goldfish live?

    A:

    When kept in captivity, goldfish live anywhere from a few months to 45 years depending on the size of their habitat and how well they are cared for. Goldfish kept in bowls have the shortest lifespan; with proper cleaning and feeding, they can survive for about five years.

    Full Answer >
    Filed Under:
  • Q:

    How do I know if my goldfish is male or female?

    A:

    According to FishChannel.com, determining the gender of a goldfish can be difficult, as the fish are weakly dimorphic. However, depending on when the fish are checked, it can be possible to determine their gender based on physical differences.

    Full Answer >
    Filed Under:

Explore