Health: 33M
This boss has no Hardmode.
At the end of the poison side trash, you’ll encounter a Coral Haj Mota. The fight is quite straightforward:
The boss will have a frontal cleave (Horn Strike) that needs to be aimed away from the group by the tank, and eventually it will bury itself underground and traverse the arena. In some circumstances, if it hits a bump Bow Breaker may not traverse during the whole fight.
There are 3 small Coral Drift Haj Mota enemies at the start, and additional ones spawn over time that can simply be stacked on Bow Breaker.
There are waves of several Coral Crabs that will also spawn over time. They will walk to the group and die of area damage.
During the fight, spawning plants will apply stacks of Volatile Residue that act in the same way as described in Boss 2 - Reef Guardian.