I am going to be setting up a mixed reef in a marineland 45 cube, 24x24x18 and the sump will be a half filled 20 gallon. I was thinking about getting a Bubble Magus NAC3.5 but then I saw that someone made a clone of it and sells it on ebay. It is called SC-65. It looks like the same skimmer but half the price. Has anyone ever used this skimmer?