We CD so we use cloth wipes too, but the real cloth kind.. they can actually be cut and sewed out of receiving blankets and they work ah-mazing. Wouldn't have it any other way! For fluid you can just use regular water, or there are many different variations of soaps. For a while we were using soap nuts which were really cool and yummy smelling, too like these:
Plain Goats Milk Wipe Wash Cubes by sistersluvcrafts on Etsy those weren't the ones we used, just an example because I can't remember which we used.
I preferred it that way, because you melt them in water, and spray the wipe with the water before changing. I don't like the idea of wipes/cloth sitting in liquid for days at a time.