Do goldfish molt their scales

Answer 1

Typically a goldfish will lose scales if it's bumped into something in the tank hard enough to tear scales; take a closer look at your decorations and remove anything with sharp edges.
If there are many scales missing in multiple areas on the body, or you have nothing that could cause the loss in the tank for decorations, then it's possible that the fish has a parasite that you will need to treat.

Answer 2

Fin rot is the most likely cause of this. If they are literally rotting away, possibly with white or fuzzy edges, it is almost a definite. Causes of fin rot are bacteria combined with poor water quality. Test your water, make sure your ammonia, nitrates, and nitrites are at exceptable ranges. Correct any issues with a water change of no more than 20% each day if required. Test your water 24 hours after each change before performing another. Products such as AmQuel can bring your ammonia down to 0 also. Make sure you are changing your filter media every 2 to 4 weeks, depending on how heavily stocked your tank is. Once your water quality is good, treat with an over the counter antibiotic, which you can find at your local fish store. This disease must be handled immediately, it can and WILL kill your fish.

Answer 3

Some fish will lose scales during the breeding process. However if they are losing scales for no reason, chances are it is from a parasite. Treating with parasitic meds can help, but water changes are most effective.

Answer 4

Well if you take good care of them there scales are supposed to shine

Answer 5

Bleeding like that is usually called hemmoraging, and can be caused by many different problems including a bacterial infection, aggressive fighting behavior, and parasites.

Answer 6

Could be fighting, a scrape against a sharp edge or a disease. If white stuff begins forming around the area it is most likely infected either bacterially or fungally.

Answer 7

It's either got a scale disease or the ornaments in the tank are too rough. Sometimes the fish fight and chew each other's scales off, but this is rare.

Answer 8

because they hurt them selves

Answer 9

No they do not ! period !