DMG
Astrodelphis come to you on their own. Pet one twice and then feed it Element. It bolts or headbutts you after the first pet, so be ready to follow it, and it swims off for sixteen seconds after a mistimed pet while your progress keeps draining. Alternating pet and feed as fast as you can react is what keeps effectiveness up, and other Astrodelphis nearby may turn hostile when you feed.
Bring 60 Element.
The Astrodelphis is a tamable, flying, carnivore creature in ARK: Survival Ascended. Classified under the DMG group.
The Astrodelphis has 325 base Health - decently sturdy. Melee starts at 100% - respectable melee power that scales with level-ups. With 250 base Stamina, the Astrodelphis has moderate endurance. A base Weight of 280 means good carrying capacity.
As a tame, the Astrodelphis is a versatile flyer useful for scouting, traversal, and light transport. It gives live birth after a gestation period, making breeding straightforward. Defeating one in the wild grants 3 base XP. It can be cloned at a Cloning Chamber for 0.67 Element plus 0.01 Element per level.
Take a look at this short video guide to taming the Astrodelphis.
Estimated time until optimal feeding point:
Food to consume through starvation: 0
Target food level: 5600