Description: The Volcano Rock Fish has been known to fling large-sized lava rocks out of its fins with accuracy and velocity. Occasionally found in Blue Crescent, near weak spots in the ocean floor. Notes:TASK FISH! How to catch Volcano Rock Fish: Catch Volcano Rock by using a Level 1+ Sonar Pole in Blue Crescent (necessary in order to unlock Magma Reef) or a Level 20+ Cubey Incinerator in Magma Reef. Requires the skill of Mastering Shark Wrangling.