i was reading through another post, and was wondering what anyone thought of this [URL="http://www.aquatraders.com/index.asp?PageAction=VIEWPROD&ProdID=292"]Hang-On Refugium with Protein Skimmer 14" Small - 705012[/URL] i didnt think i could find skimmers for so cheap, which is making me reconsider not using a skimmer for my 28g fowlr tank. how is this one with the hang on refugium? also, anyone know where i can find a refractometer for less than 100 that's a reliable source? thanks!