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I use the octopus and really like it, but I have no other experience to compare it too. Lots of info on the octo skimmers on RC when I did my research and made that choice.
I have decided on the Reef Octopus DNW-150. I am going to have the skimmer, uv filter, and provision for a calcium reactor all plumbed from one section of my sump on a recirc line.