This mod adds 4 types of helmets that allow one to breath underwater for longer periods of time!
Snorkel (increases your air capacity by 1.5)
Atmospheric Diving Suit: Tritonia Helm (doubles your air capcity)
Scuba Helmet (Single[3x air] or Double Tank[6x air])
This nifty little machine will restore the air within your gear simply by right clicking it with your gear or right clicking it with your gear on. The only thing required for this thing to work is a redstone signal.
This form of underwater life will generate randomly in or near water. They give off light and will also give off coral fragments when mined up.
Coral Tools (Pickaxe, Shovel, and Sword)
Tools made out of the Coral Fragments mentioned earlier. They have the same strength as Iron Tools, but have better durability and have improved efficiency when in the water. The crafting recipe is the same as regular tools, just with Coral Fragments
ADS: Tritonia Helm
Single Air Tank
Double Air Tank
2x Air Tank