well if you use ls, it will not cloud, hardly at all, butif you use dry aragonite(and you probably can get southdown in MD), soak it for a several days, not rinse, and use a pvc pipe to get it to the bottom with out alot of dusting, and if it ddoes get cloudy, pause for a day or so, ff are very hardy fish and can take some dust but i would nto push my luck with a lot, and last add only 1/4 inch at a time, wait a week or 2 before continuing,
and also, slowly remove your bio balls(if you are using that wet dry) after removing all of them then, yes a dee sand bed would be more beneficial than the balls in there, and you could also add a couple of small pieces of lr too
HTH