Thanks for the compliment! It certainly has all the bells and whistles I could think of, including the wireless underwater camera.
The inside diameter is approx 60" diameter, and holds approx 300 gallons. Because it is round, it is very easy to create a current if you want so they have something to swim against. The filter has K1 media and is very efficient & able to handle a sizable fish load. And the filter is super easy to clean.