I had a sea clone going for 2 monthes and could never get it to do anything. It was way to touchy. So I bought the Aqua-C. Super easy, hang on back, plug in pump, and away she goes. Works awsome with no adjusting at all. All I do is rinse out the collection cup every couple of days. This is one a 29gal by the way, but a friend has it on a 55 and it works great.