Body Fungus

[Xtech]

Is fungus contagious? If it is, would a UV light help stop the spread?

 

[WILDER]

How many gallons or litres is the tank, how many fish and which type.
Water stats in ammonia,nitrite,nitrate,and ph.
Yes it is, where is it on the fish does it go along the back and come down the sides and look fluffy.