CREATE TABLE table_name_65 (investing_dragon_s_ VARCHAR(255), first_aired VARCHAR(255), entrepreneur_s_ VARCHAR(255))
Who were the Investing Dragons in the episode that first aired on 18 January 2005 with the entrepreneur Tracey Herrtage?
    
SQL: SELECT investing_dragon_s_ FROM table_name_65 WHERE first_aired = "18 january 2005" AND entrepreneur_s_ = "tracey herrtage"