I am just curious what you guys do about dust and general dirt in the tank. I have a 90 gal reef that has been up for about 2 years now. Usually I just use a turkey baster and try to "dust off" the live rock and corals. Then try to get the dust to go into the overflow down to be filtered by the sump. I don't think I overfeed and my tank parameters are stable. Just something that kind of gets on my nerves when I am watching the tank and notice this "dust" on stuff. I have been considering that Eheim Sludge extractor or maybe a canister type filter to polish the water. If you have any ideas or experience with this please tell me. Thanks