Corythoichthys nigripectus (black-breasted pipefish) is a species of marine fish of the family Syngnathidae. It is found in the Indo-Pacific, from the Red Sea, Indonesia and the Philippines to the Society Islands, Guam and New Caledonia.[1] It inhabits coral reefs and algae patches at depths of NaNm (-2,147,483,648feet), where it can grow to lengths of 11cm (04inches). This species is both monogamous and ovoviviparous, with males carrying eggs and giving birth to live young.[2]