[reef_guru]

sand bottom tanks have 7 layers of bacteria that play an important role. disrupting them will cause havoc. each of them has a purpose. it doesnt matter if its dsb or 1 lbs per gallon. if your going to stir the sand to disrupt the reason its there in the first place, be prepared to add more sand later on, take the risk of wiping out your tank, and doing it on a regular basis i.e. daily or weekly to keep it clean throughout all the time as to not let the bacteria grow. there have been tanks that have been up and running for over 10 years without disrupting the sand bed. a surface level clean up crew will handle the sediment aquired above the sand. sand sifting stars have been known to disrupt the tank bio by stirring the sand.

you have two choices leave it alone or constantly clean it.