White patch on Goldfish

RED SORES
Red sores that are wounds, red on the outside, white on the inside are most likely
the bacteria Columnaris.
Red sores that are wounds, white on the edge, red in the middle is most likely the
bacteria Aeromonas.
Red dots under the chin or along the back are often a parasite called Costia.

http://weloveteaching.com/puregold/disease/disease.htm
COLUMNARIS
SYMPTOMS: white threads blowing in and out of mouth, dry skin, skin color darkens,
white fungusy or thready looking sores, peduncle disease, red anal vent, chronic
bubble eating
check for mouth and anal vent for sores; slime coat; mushy belly; gills light to dark
brown patches, white sores
TREATMENT: potassium permanganate in the water, feed romet B, injection of antibiotic
if possible. Topical treatment of wounds.
SOLUTION: improve water conditions, quarantine new fish. It almost always indicates
that a parasitic infection is going on and an accumulation of organic debris,
including fecal matter.

There are two main kinds of infection, internal and external. Some fish are
carriers, others acquire internal infections when they eat fecal matter of other
columnaris infected fish. Internal infections may cause adhesions of internal
organs. In fancy GF, this can damage or bind the swim bladder to the point that
floating problems occur. This may be one reason some fish are chronic air bubble
eaters and are unsteady in the water.

In most cases, the only symptom of an internal infection is redness in the mouth or
at the anal port or some thready material around the mouth.

The problem with columnaris is that when it is inside the mouth and the scales are
lifting with no signs of an outbreak it usually means it has gone systemic. You
cannot treat the nodule if it hasn't ruptured yet, so the only alternative is
medicated foods. When there is an external infection, the wounds seem to appear over
night. Jo Ann

"AusWendy" wrote:

Hi Everyone,

Just wondering if someone could tell me what the possible cause of a white
patch on my goldfish is.

Have had 1 goldfish and 2 smaller fish in freshwater tank for 7 months. No
problems at all until this week.

On thursday white patch appeared near the head of the goldfish with red
around the outside of it. Since Thursday the patch has nearly doubled in
size, there is an area of redness around the white.

Ph is fine, the other fish are fine does anyone have any idea of what this
could be?

Many thanks,

Aus Wendy




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