search google and this website:
INDO-PACIFIC Coral Reef
The varied Cnidaria include the reef building corals, the sessile anemones, and the free floating sea-jellies...
Phylum Cnidaria: Sea Jellies, Corals, Anemones
Class Scyphozoa: 'True Sea-jellies'
These are Jellyfish that have eight divided arms hanging from the bell, rather than tentacles
Family Cassiopeidae: 'Upside down Jellies'
Cassiopeia ornata, 'Upside-down Jellyfish'.
Class Anthozoa: includes Stony Corals, Soft Corals, Anemones
Sub-class Ceriantharia: Tube-dwelling 'Anemones'
Well it looks like my first trip after the virus now might be as an Expedition leader in Tasmania with Coral Expeditions. If you can't go travelling until everything settles down, then until then, here I am doing online guided walks for Noble Caledonia and online lectures for Silversea.