The Nessie is Tier 3 animal/pet so far for the creater of the page the food is unknown and to get this pet you will need a pet with dive any level the place you will find the Nessie is between the Beach and the Plains where you can find 2 other pets the Jelly Fish and the Squid to catch the Nessie you will need a Great Net which cost 50 Tickets and Super Net which cost 150 Tickets and More LATER