pearson - since he stated he was using live rock, I assumed FOWLR
or Reef. If we asked every question possible, we'd never finish a topic
sdellin - with proper flow, and a skimmer, there won't be particles floating around...they'll be broken down by the DSB
and/or removed via skimming.
if you have a particular issue with floating particles, you could add a small HOB
filter to teh tank and run it as necessary. I do this with an AC
Mini, to remove the layer of scum that sometimes builds up on the surface of my water, 48 hours prior to a water change.