Help me please!

[Surfr]

My goldfish are getting this weird disease and they are dying.

Its weird. Their scales start to turn black and it spreads all over their body and they eventually die!

What can I do to save them?

[AquariumPro]

Hello and welcome to the boards.

Could you please describe your aquarium and your fish in detail? It is very difficult to help without seeing the whole picture.

[rfleming]

sounds suspicisouly like ammonia burns...please tell us more including your water parameters