So I found this tip on taming a manta while I was recording a video with my friend and I was taming a manta cuz we had too much gel (we lived in an underwater cave) and im here to share the tip with you
Step 1:aggro a manta (or a horde of mantas, regardless it will work)
Step 2: go into the underwater cave and jump on the ledge, this will force the manta to stay at the surface of the water not even noticing you.
Step 3:feed the manta gel until it is tamed
Boom, you have a manta, while I've only tried this on mobile, im fairly confident it will work on pc/console too
Share this with anyone who needs help taming a manta
Tame a kaprosuchos and swim to one of these bad boys and do it's alternate attack it will grab it in it's mouth. walk onto the shore where its safe and have another person feed it while in the gators mouth (if you unmount it drops it) it wont attack or die because it's technically not on the shore.
They have terrible turning circle, approach one from above and feed it. Then let it swim circles around you. The occasional time it gets close you can predict its attacks, it “bucks” just before the attack, which is the tail swinging underneath. Quick swim up or back avoids it. Be prepared to get dizzy, long time between feeding