<a href=showthread.php?s=&postid=13907562#post13907562 target=_blank>Originally posted</a> by Santoki
I would love to see them. There are non around where I live, and non that I've seen on RC.
Perhaps if they are fishless?
I think Randy's comical statement sums it up pretty well.
A skimmer will remove both beneficial plankton and bacteria as well as fish poo, chemicals released by tank inhabitants during respiration, uneaten food, anything decomposing, the list goes on and on. The idea is to remove the uneaten food and waste before it has a chance to break down. A skimmer needs to be employed to make sure neither of the two remain in the water column long enough to turn into fertilizer. On the reef, currents bring in food and carry away waste much like our skimmers do. Nothing sits around on a reef, including plankton. Based on your typical water volume to animal population ratio of a typical reef tank, the benefits of running a skimmer outweighs not running one IMO.
Getting back to reefkeeping misconceptions...
Is a skimmer needed to run a successful reef when "reef" is defined as a structure built by stony corals?
I vote yes.