^^ Right.
Is that all that came with it? If so, i think you may be missing some parts for the Eclipse.
The Eclipse should have a motor unit with an intake tube that will distend into the tank and a diffuser that fits over the end of the tube. The motor is a loose piece connected to a power cord and it has a groove that will fit over a lip in in the Eclipse. This will pump up water into the Eclipse lid. The water then runs over a filter cartridge and then out through a biowheel to the discharge chute and back into the tank. I can see the discharge on the right in your picture, so there should be an opening on the left.
The motor assembly looks like this:
If you can't figure it out, let me know and I will take pictures of mine. I have the same exact setup.
http://www.marineland.com/sites/Mari...pse_manual.pdf
That's the owner's manual with a listing of all part numbers in case you are missing anything. Big Al's online sells all of the parts.
The Eclipse is a great system. It's dead silent and looks nice and clean.