Darkroom aspirations

I really like my edits in Photoshop with the 'Glowing Edges' effect, these have inspired me to look further into the patterns you can create with water movement. Having already used an underwater camera I want to look at other creative ways I can capture the movement. One of the ways I thought would be interesting would be to place the photographic paper instead of the camera into the water. My aim with this is to work successfully in the dark room, placing the photographic paper in the water I am then able to throw, place or move things around in the water on to which in turn creates movement. Then using light from the enlarger or even just a few seconds or less of natural room lighting will allow the photograph to capture whatever moment is going on in the water above. In turn this should if done correctly create strange shapes and patterns, hopefully in turn enhancing the texture of the water creating some really interesting images. I am hoping the outcome will create the same look of those edited with 'Glowing edge' but without any digital manipulation.