Yes, I found this in the photos I did on an expedition along the New River, back in 2015:
You don’t see that, if you are merely looking at the actual thing. It takes a camera to see it, and then show it to you. And even then, it took me quite a while to see this particular thing.
I think it helps create this illusion that there is coloured stuff in the water, which makes the reflection look less like a reflection and more like a solid and separate thing.