Paraclinus marmoratus are referred to as Rhino Blennies due to their prominent horn-like fin protruding from their head. Their other common name, Marbled Blenny, is due to their beautiful mottled beige and red coloration, giving a marbled appearance. They are a timid and slow fish that hide among seaweed and vegetation. They are ambush predators, waiting for smaller fish or crustaceans to float by. They are peaceful and should be kept with other peaceful, timid fish.