Description: The sonar-sensing Submarine Fish launches deadly torpedoes to defend its territory. The fish has maintained an abundant population since prior fishing equipment could not detect movement at deep ocean levels. The Submarine Fish's concealment will be revealed with the Jet Propeller Augment. Notes:How to catch Sub Fish: Catch Sub Fish by using a Level 57+ Sonar Pole in Blue Crescent. Requires the skill of Secrets of Farvoia. Repel Sub Fish by using Sigfried's 57th. Requires the Robo Jet Propeller add-on for the Sonar Pulverizer to catch.