Sinuous sea fan
Sea fans are related to soft corals.
They look like small trees, but they are actually colonies of animals (polyps) living together in the shape of a fan.
Each polyp has eight feathery tentacles.
When the polyps come out to feed they give the “branches” a fuzzy appearance.
Sinuous sea fans are flattened with all the “branches” on the same plane.
Small spider crabs can often be spotted hiding among the branches.