Newbie here, have had a fresh water tank (55 gallons) for quite sometime now and am in the process of setting up a saltwater tank (55 also). I bought it from a co-worker that no longer was using it and it has the main components to it. Unfortunately I'm not able to reach him at the moment to see how the skimmer is setup. I have pictures that you can see here. The pieces may be upside down, not sure.
It also comes with an air pump. I'm not certain how it is to be hooked up. I have a sump tank (20 gallons) that I plan on placing it into. Any advise or assistance would be appreciated.
Dawn and Chris