See: Description
| Interface | Description | 
|---|---|
| FluidStack | Represents a stack of a particular  FluidTypeand
 volume measured in "milliBuckets" where1000mB is equal to
 1ItemTypes.BUCKET. | 
| FluidStack.Builder | |
| FluidStackSnapshot | |
| FluidStackSnapshot.Builder | |
| FluidType | 
| Class | Description | 
|---|---|
| FluidTypes | 
ItemStacks are literal
 stacks of an ItemType with extra data on
 it, FluidStack are literal stacks
 of a FluidType with some extra data
 on it. There is no real detail of what constitutes a FluidStack as a
 tangible item, but more so that there are items in the world that are
 "containers" of either one or several FluidStacks.
 In vanilla, there are very few items that contain a FluidStack.
 The first item that comes to mind is a
 ItemTypes.WATER_BUCKET will always contain
 a FluidStack of
 FluidTypes.WATER with the quantity
 of exactly 1000mB. The FluidStack itself on the bucket cannot
 be changed, but the ItemStack would be changed from being a water
 bucket to just a normal empty bucket. This is also the case for lava buckets.