My male Dwarf Gourami has developed a patch of white furry ( i presume) 
fungui on its lower fins. I have treated it with interpet No 8 Anti fungus 
and finrot 3 days ago but it doesn't seem to be reducing. It seems lively 
and not showing any signs of distress, but I don't want it to get any worse.

Has anyone got any advice ?

Thanks