Goldfish developed black marks and spots

[chris]

Calling all goldfish experts!

Our goldfish of about 5 years old has developed about 3 or 4 black marks / spots. He seems fine but does anybody know what these black spots could be and how we would treat it.

Thanks.

 

[rolfw]

If they are small spots, could be as on this page Chris. _http://saltaquarium.about.com/cs/compldiagnodisease/a/aa041701.htm

 

[Topper]

Or indeed
-http://www.happy-goldfish.com/black_spot.php