Quillfin Blenny

Found singly, resting on pectoral and dorsal fins, blending in with the background, over coral, rock, and seagrass beds, of deep reefs rich in algae growth.

Males and females differ in colour as well as the males have a more elongated fore-dorsal fin.

Scaly Blennies are found in various habitats perched on their fins and usually blending in with their surroundings.
Males and females often have different colouring and features.
Most are unafraid and don't move unless they feel threatened.