Yonsei wrote:
I have an FO only talk with three fish. The tank is about 1 year old
and in pretty good shape. However I have noticed that my fish (eyes
and skin) seem to have a white fim on them. They are eating quite well
and seem to be in good spirits.

Can anyone suggest some things to look for or any disease that I might
be heading into?

Sounds like "velvet disease", properly known as Amyloodinium ocellatum. This is
a parasite. Usually, the fish dashes around and attempts to scratch itself on
items in the tank. Rapid gill movement is common. The parasites damage the
gills, so, eventually, the fish becomes lethargic and dies.

Since you have a FO tank, this should be treated with citrated copper sulphate.
Buy a good copper test kit to use with this, and maintain the recommended
concentration for at least two weeks. If you overdose, you will kill the fish.
If you fail to keep the concentration high enough or for long enough, the
disease will return.

If your tank contained live rock or any of a variety of other animals, you would
have to remove the fish into a quarantine tank for treatment and keep fish out
of your main tank for at least a month.

George Patterson
No one ever says "It's only a game." when his team is winning.