Oneline Clingfish

Found singly or in pairs, hiding in the arms of crinoids, blending in to match their host crinoid, over coastal and inner protected reefs.

Clingfish are bottom dwelling fish often associated with sea urchins. Often tiny fishes of less than 6cm.
Their skin is smooth and scale-less and covered in a layer of mucus for protection, and some can change colour if threatened.