Gurami With Skin Problem - What Could It Be - Photos.

[Vin Swords]

as title says.. it was started as small spot two months ago. now is bit bad.. dont know what it is.

could do with bit of help...

 

[WILDER]

Size of tank in gallons or litres.
How many fish and which type.
Water stats in ammonia, nitrite, nitrate, and ph.

Are they spots on the fish or patches.
What colour are the spots, as they look pink in the pic.