Running a reef setup - 50 lbs of live rock, 25 lbs of live sand (the good stuff from Tampa Bay Live Rock), and the "package" of cleaners - snails, star, shrimp, loads of hermits. Also have two anemones that came along for the ride. Finally stablized after about 6 weeks. Been doing weekly 4-5 gal changes. So here's my question: Shoud I vacuum my gravel along with the water changes or let the cleaners eat the detritus? If not, would the advice chnage when I add my 11" - 12" (mature size) of fish?