Some people scrub their live rock...i use a power head and blow the crap off of mine..once a week or so..to each their own.
i'll post a pic of my DIY sump tonite ....very quiet and cheep to make.
_________
125 galon all glass tank with built in over flows,35 gallon sump,3 175w 10k metal halides,2 40w actinics,1 40w 50/50,90 lbs of live rock,3 inch sand bed |