My goldfish have swimbladder disease. Any suggestions on how to treat?

Question

Ive tried medication from the pet shop, starving them for 5 days and feeding them peas but nothing seems to work. They are kept in a seperate tank from the others and it seems to go away but returns after a couple of days when moved back into the main tank. They are orlandas and black moors.

Answer 1

Hi Angela, swim bladder disease is a multifactorial illness which primarily affects ornamental goldfish which have globoid body shapes, like orandas, ryukins, and fantails. It most often presents as a fish which floats at the surface, or a fish which stays on the bottom and doesn't seem to be able to easily rise. A fish which has normal buoyancy but is listing to one side or the other often does not have swim bladder disease, but may have other diseases.

In order to understand swim bladder disease, a cursory discussion of fish anatomy and physiology is necessary. The swim bladder is a small epithelium-lined sac in the anterior abdomen which is responsible for maintaining buoyancy. It has a close association with blood vessels such that gases can diffuse across into and out of the sac according to the needs of the fish. The sac inflates if the fish needs to be more buoyant, and it deflates if the fish needs to be less buoyant. Goldfish and some other fish have a special addition to this system called the pneumocystic duct, which is a connection between the swim bladder and the esophagus, allowing additional adjustment of buoyancy by letting air out through the digestive tract.

People have debated for years over the cause of swim bladder disease. It is pretty well established now that a number of things can cause swim bladder disease. Some of the things which have been suggested are:

1. A virus. The virus attacks the epithelium of the sac and inflammation occurs which makes the epithelium too thick for gases to diffuse across. Thus the fish is stuck at a certain buoyancy because gases have nowhere to go. This may be
more of a factor in non-goldfish species.

2. A Bacterium. There is little evidence to support this, but it's widely known that bacterial infections can cause the same kind of thickening of the swim bladder epithelium as viruses.

3. Anatomy. Globoid-shaped fish like ornamental goldfish are predisposed to problems with the swim bladder because their guts are all squashed up in their abdomen. This arrangement predisposes to food impactions, which in turn clog up the pneumocystic duct.

4. Diet. Feeding dry foods which tend to take on water like a sponge and expand in the fish predispose to food impactions.


What can you do it prevent it is:

1.As always, the golden rule of fish disease is WATER QUALITY. If swim bladder disease does have an infectious cause, your fish will be better able to resist this infection (and others) if your water quality is good. Periodic water changes and
water testing are a must.

2.Pre-soak your flake or pelleted food. This will allow expansion to occur prior to the fish eating it, and will lessen the chance of impaction.

3.Even better, switch to a gel-based food or other food source, i.e. frozen or live food. You can E-mail me for a recipe for gel food.

What can you do to treat it:

1. Feed your fish a couple of peas. That's right, peas. Just get some frozen peas, thaw them, and feed them to your fish. A professor of fish medicine at N.C. State College of Veterinary Medicine has done this in several cases with very good
results. He thinks that the peas somehow encourage destruction of the impaction. No hard scientific data yet, but it's worth a try.

2. Periodic aspiration of the swim bladder works very well. Basically, you stick a needle in the swim bladder and suck out some of the air. Not something to be entered into lightly, but does work well. This is not a cure, but a successful treatment.

3. Fast your fish for a couple of days. Withhold all food for three or four days, and sometimes this alone will break up the impaction and return things to normal. Most fish can go a week to ten days without food and be just fine.

Hope all the above info helps you to help your fish.

Answer 2

If I were you I would keep them in a separate tank if possible. Fancy fish are harder to look after. The swim bladder disease is caused by bacteria therefore the main tank needs treating. You will get the correct treatment for anti-bacteria from your pet shop. When I had this problem I treated with Interpet No13 together with Aquarium Salt as directed on the carton. Unfortunately this condition is often fatal which is why I say keep them in a separate tank.

Answer 3

I agree, you've tried all you can. Fancy goldfish are bred to have short backs and in the process the swim bladder is crushed and doesn't always develope completely. The fish can live full lives like this in tank settings.

Answer 4

there's really nothing you can do for them except to make them more comfortable, lower the water level to less than 12 inches
it'll be easier for them to move

Answer 5

flush it down the toilet and get a new one...