When I change one instance of the water it changes them all.

I have a body of water in one scene in my game, which is normal, blue(ish) water, however, when I create another body of water on a different scene and modify it to look different, for example murky water in a swamp, etc, all of the instances of water in all of my scenes on the same project are changed.

Is there any way to fix this?

Thank You!

P.S. I am using the standard Basic water that is included with the free version.

If you are using a Material to change the color of the water, your probably modifying the material in your other scenes. Keep in mind that the material is saved in the project and that modifying it will modify all the objects that have it set. In order to use different colors create different materials for each water or create a texture atlas and select the texture of every water.