Tank - Full Summary

So my wife and I where looking to add a little more scenery to the dinning room area of our home but didn't want to spend a fortune. So while picking up some supplies at a local Pet Smart we stumbled across the the Fluval Chi. It is a 5.5 gallon rimless aquarium with and integrated filter with LED lighting. It allows the water to be filtered and to trickle back into the aquarium like a fountain. So at $55.00 for the sale price we had to pick one up.

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So I'm most likely going to be bombarded with various post telling me that I am absolutely nuts for thinking about setting up an aquarium without a sump. But my wife purchased a standard 120 gallon All-Glass aquarium for me for Fathers Day and rather then take the aquarium back to the store to imply that she did something wrong I would rather run with it. Besides I know that a sump has many uses and provides for a broader spectrum of equipment to be used but in my thinking really what is a sump ...