I put some river rock (2-6 inch in size) around 90% of my pond. Pond is in the woods, will have very little wave action besides aerator and maybe small fountain. The other 10% of the edge I have some nice pea gravel several inches this for an area that hopefully my kids and dog would enter without wrecking the rest of the sides of the pond.

I have a decent amount of extra pea gravel....is it worth spreading/shaking the rest of the between the big river rock or will that ruin some of sides and make the larger rock gradually fall in?

Or should I dump some piles of the gravel in the shallow slopes for spawning sites?

Does anyone have any other ideas for pea gravel use. I probably have a couple tons left.