Talk:Diving Helmet/@comment-109.182.1.125-20120131134255/@comment-5238475-20120627183718

Sharks do drop helmets after the Wall of Flesh is killed; however, no aquatic animals will spawn in an ocean that is made of Pearlsand or Ebonsand. Therefore, if your ocean becomes Hallow/Corrupt, you will either need to create a new world or attempt to cleanse your ocean (a very daunting task).