The tube is made with a felt of very long, discharged nematocyst cells and is sufficiently rigid for it to be excavated intact from the surrounding sediment.

Ceriantharia have adapted large pores on the surface of their tentacles as a mechanism to retract into their tubes to avoid predation faster.

The tube production starts in an area around the tentacles and continues in a ring formation down the body of the anemone, meaning it has an open end in the basal region.

[7] The Phoronid worm species Phoronis australis has an obligate commensalism relationship with C. braziliensis, where it gets a substrate, food, and protection from predation from the anemone.

The tube is made by forming woven layers of adhesive tissues, which traps small amounts of sediments and Foraminifera tests.

[10] Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) listed C. brasiliensis as an endangered species based on the fact that enough evidence has been collected to study this issue, and requires more scientific, comprehensive review for clarification.