i have very fine sand in my tank. It was a nightmare at first, but it does pack down after some time (about 6 month ish). Although, sometimes I accidentally stir up some sand, and my clowns host the sand so they are always kicking up sand, so does the goby, which basically forces me to clean my machines pretty often, about every 2=3 months. I always find fine sand particles in the machine when I take it apart.
I would never use fine sand again, and if you just started your tank and its still easy for you, you should consider to change it, or at least put an inch of other sand on top of it to weight it down.