Red Sea Prisms, SKilters, Seaclones are all pretty well a joke unless you like to be constantly fiddling with them only to get mediocre results. You can spend big bucks for top names, or you can spend a reasonable amount of money for a coralife super skimmer that is a great skimmer, and does a super job.......A CSS 65 can be had for under $86 from online sources, and IMHO is much better than a Remora is, and certianly much quieter....