Please Help My Clownfish Is Ill!

Hi

I've only had my marine saltwater aquarium two weeks and purchased two clownfish last Saturday and added them to my tank. They looked perfectly fine on the Saturday. On the Sunday I noticed one of the clownfish had a black/grey blob at the base of its fin underneath its gills. By Monday this blob had turned into a slightly cotton wool appear but then seemed to get slightly better on Tues (i.e. the cotton wool appearance disappeared). Today it looks like the blob has got bigger and is a collection of small black / grey bumps. I've attached a picture but its not very clear.

Apart from the blob on the clownfish's fin it is fine in itself, it's swimming about a lot and also eating.

What is wrong with my fish and how do I cure it?

Thanks in advance

Sounds like gill flukes to me.

Ok first off what else is in the tank? any LR or clean up crew? and have you got any water parameters? sorry to answer a question with a question but it could play a key part in resolvng your problems

chrissaysyes said:

Sounds like gill flukes to me.

Click to expand...

Agreed

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IT'S GILL FLUKES

It is not gill flukes.

The white cotton wool stuff was fungus and grows in damaged tissue. It is often associated with bacterial infections and or caused by rough handling

It is either a bacterial infection or more likely a virus called Lymphocystis.

If it is a bacterial infection then it will be red around the base (on the body) and over the next few days the red will become more noticeable.

If it is the virus then it is stress related and will clear up in a month or so. The fish might develop a few more over the next week, usually on the edge of the fins. This virus is common in marine angelfish and surgeonfish but can affect any species. It is harmless but looks unsightly. Keep the fish well fed and the water clean, and it will go away on its own.