Hippocampus

Hippocampus are colorful aquatic creatures, which can work as excellent water mounts once tamed. They are native to all ocean biomes, and are peaceful.

Taming
A Hippocampus can be tamed using kelp. Sponge blocks can lure a Hippocampus.

Use
As a mount, Hippocampus is almost useless on land but very speedy underwater. If riding on a Hippocampus, a player is granted water breathing.

Once tamed, they can be equipped with chests, a saddle, and horse armor.