Shown here is a bunch of Italian ruscus. There is a variety of Israeli ruscus, which has larger and more rounded leaves. This variety has longer, slender leaves that can be cut off in shorter laterals.
This greenery adds a lighter and more airy feel to the arrangement.
Here I've inserted a shortened piece of Italian ruscus into the corner of the spray bar.
You can see the the second piece of Italian rusucs is stood straight up and down when I began to fill in the top of the Oasis foam.