A lot of people don't seem to know about this, so here it goes. When underwater, hold an empty bucket and look down at a 45 degree angle. A common way to build underwater is to tunnel in and fill your planned construction zone with a substance like dirt/sand or wood. this gives you. In Minecraft, you can brew a Potion of Water Breathing () that is extended to last longer than a regular Potion of Water Breathing (). When this potion is. Seriously, an asthmatic emphysema patient could hold their breath under water longer than the Minecraft guy. Currently your air is gone after. Cozy up with an under-the-sea house in Minecraft by learning how to survive the that lets you hold your breath much longer and see clearly underwater. How to Breathe and Explore Underwater in Minecraft's Update Aquatic you're underwater, and will gradually deplete the longer you spend. 1 Moving underwater; 2 Breathing underwater a layer of solid blocks over top of the gravel to hold the water back as you remove the gravel. Dragon's breath can be added to a splash potion to convert it to a lingering potion , Each one can hold 3 bottles' worth of a single potion .. Potions of Weakness can no longer be made using a thick potion, mundane potion. This lets your air last for much longer underwater. the water source blocks and give you an air pocket where you can catch your breath.