If you use lazurus chowder it will slow how fast you take oxygen. 1000 oxygen will last about 10 min while chowder is in use. Very fast and small, and if you pack chowder a very good Diplo can last hours before needing to surface.
Some people may not understand how much oxygen this thing actually has. Even a low lvl can stay underwater for what seems like an eternity, more than youll ever need for farming pearls in the river and gathering oil
A more non-conventional (but still affective) use of this animal would be scouting missions, their low profile makes them nearly invisible on a beach at night, and they are speedy enough in the water to make a fast escape. Note they can only be rode in the water
Just so you know it can be ridden underwater. While riding it your oxygen wont deplete and its a very fast swimmer. Its attacks can insta-kill trilobites and collect a huge amount of chitin at the same time. They can also be carried by pteranodon and above so you can easily transport them to different places, and easily pick them up and tame them elsewhere.
Great for harvesting chitin abd silica pearls from trillobites. Deals extra dmg to them and can usually kill 2-3 at once if they're close enough together. Adding movement speed will make it fast enough to outrun anything underwater with ease.