With the current populairty of nano aquariums it is no wonder that we are seeing a large influx of new hang on back protein skimmers. Most all in one aquarium kits don’t ship with proper equipment because manufactures want to keep the entry point as inexpensive as possible for their particular target market. ATB has been designing their hang on back skimmer for quite some time and we finally know how much it will be to get a ticket on the ATB hang on back skimmer train. Try a cool $499. Now, finding out when you’ll be actually able to order it is another question altogether.