Great video Bill. LOVE your tanks by the way. Setup help is definitely nice as it can be hard to tell what to do for some of that stuff based photos in the setup sheets.
Just curious, what’s the purpose of the waterfall on the background?
It depends on the person's goal. For most, its just to have a bit of running water. But, it could also be used to grow marginal plants. The purpose of the video wasn't to show how to install a water feature on a background, per se, it was to show how to install the Rio and give ideas on how to work materials.