Goldfish Has Growth On Its Back!

[bubbles.the.goldfish]

One of my goldfish has a moderately large white growth on its back. It is acting normal and eating and it has been there for a long time, but I still want to know what it is and how to get rid of it. My other fish also have white patches on their bodies as if they are missing their scales in some places and one of them has a red dot at the base of its tail. Here are pictures.

They are all acting normal. They are in a 29 gallon tank along with a mystery snail.
Please help me diagnose this!
From what I've read so far, I think it is anchorworm. But it's better to be safe than sorry Everything is normal. I have no living plants.

 

[WILDER]

Are they only two goldfish in the 29 gallon tank.
If not can you say how many fish and which type you have in the tank.


Can you post water stats please. In ammonia, nitrite, nitrate, and ph.

Can you enlarged the pics of the growth.
Does the growth resemble a cauliflower.
Does the growth on the fish have any redness to it.
The white patches do they look fluffy like cotton wool.
Any signs of flicking and rubbing.

 

[bubbles.the.goldfish]

There are 5 goldfish in the tank. All the water stats are normal.
This is the best I can do for the picture-

It does look like cauliflower to me, there is no redness, they do not look fluffy, and no, the fish is acting completely normal.

 

[WILDER]

Your tanks overstocked then.
For five goldfish you need at least 60 gallon tank.
120 gallon filter as they are massive waste producers.

I meant the white patches on the fish if they look fluffy like cotton wool.

Caulifower looking growths on fish can be lymthocystis.
But not sure if the growths look red, they usually white or brown, so will check for you.

Red dots can be parasites to septicemia.

I think I would add a bacterial med to your tank.

Lymphocystis



Symptoms:

Fish infected with Lymphocystis will present with clusters of whitish, berry-like growths on the skin and fins. These "clusters" may resemble small clutches of eggs or cauliflower (hence, it is sometimes called Cauliflower Disease). They will be clearly visible and may even become extremely large. This disease often affects the fins first.



Cause:

Viral infection. The virus will eventually kill the fish if it is unable to mount a strong enough immune response as the virus rampages through the fish’s tissues, destroying its cells.



Treatment:

As with all viral infections, there is no suitable cure or efficacious treatment; however Quick Cure claims to be helpful. I have also heard of people who trim the fish's fins, followed by several baths in Malachite Green. Fortunately, this disease is uncommon and in some cases, infected fish are able to recover quickly without treatment.

Lymphocystis is highly infectious. When infected cells from the fish’s skin or fins burst the virus is spread throughout the aquarium and can remain contagious for periods of up to two months. Fish not showing symptoms should be removed from the aquarium and placed in quarantine, away from other fish, for at least 60 days. Note, remove uninfected fish, not the other way around because the aquarium has become contaminated. The infected aquarium should be emptied and thoroughly disinfected before returning any fish to it. Do not use soap to clean the aquarium