The best most powerful skimmers are becket skimmers=Bullets,aerofoamers,myreef hsa. The most effiecient but limited would be Euroreefs. IME a becket or euroreef blows any other skimmer out there. well in a decent price range. They make skimmers with wipes= self cleaning large that cost a few k. But I'm talking under $800. Berlin maybe good for under 75g ime. They aren't even in the same class.