The near-white lacy bryozoan, Triphyllozoon inornatum, has been getting attention from divers over the past couple of years since various inhabitants were spotted living in them at Ambon. In this video from Lembeh was see the same species of bryozoan hosting a soon-to-be-described bryozoan goby, a bryozoan crab (Pachycheles garciaensis) and a bryozoan snapping shrimp (Synalpheus sp.).
I originally made this as a quick video for a bryozoan specialist to confirm the ID of the bryozoan for Gerry Allen to put in his paper when he describes the goby, but I decided to make a bit more of it.
Shot with a Panasonic GH4 in a Nauticam NA-GH4 housing. I used an Olympus M.Zuiko ED 12-50mm f3.5-6.3 EZ lens with Nauticam CMC (and the 60mm f2.8 macro lens for the crab shots).