Here's a view of my latest install. Happened to be my mother in law too. No biofalls, no UV filters - just the way I like to install. Plenty of circulation, falls for oxygen, aquatic plants, and lots of bottom rock for beneficial algae and bacteria. I'm quite fond of this moss rock, but also use big rounded river rock or flagstone. I think 45% of a water feature is the surrounding plant material, and that ponds get better with age for that reason.