Little O resting in the burbs:

Barnacle Billie shows up at the surface (kristen taking a shot) and then dives down to engage Little O:

Barnacle Billie brok off and went over to a new spot and started scratching her carapace. Little O surfaced for air

and then went down and engaged Billie:

In the image below, you can see Billie on the reef below Little O:

I started video when Little O got down to Billie and then a few minutes later set the video on the reef to

capture Billie scratching after O had left her.

We encountered Rocket Girl foraging inside on the main reef: