the stream

a new mob the water counterpart of the blaze known as The Stream 

this mob is found in the submerged cities found in oceans 

the stream is allergic to air and fire

in the submerged cities players can find the aquifer enchantment book which can be used to enchant arrows so they can travel through water easily 

when killing a stream it will drop stream rods which players can use in a fletching table to make more of the aquifer arrows