Whether enabling fog conflict with water reflection?

Hi to all,
I’m currently study using fog in unity.But i have a problem with water reflection when fog is enabled and water(pro)reflect a completely opaque flat surface.How i Can resolve this issue?

I use unity pro ver 3.5.2 with water(pro)and community skydome script instead of skybox.

below is 2 image with fog enabled and disabled.
thanks for any advice and excuse me for my bad english.

this fog enabled
alt text

and this is fog disabled

Try adding a flat plane just under the surface of the water with a dark albedo material attached