I experimented with taming a level 5 of this guy on an Icthy. Just thinking on experimenting with the taming effectiveness of raw meat and raw fish meat. Fed it on my Icthy (not dismounted) with raw fish meat first. It got if I remember correctly 6 mantas with it. The mantas tried to locate me but were unsuccessful so they patrolled around for a while. They never located me then I accidentally hit the basil with Icthy trying to kill the mantas. The mantas ran away leaving me free to tame it. P.S. They didn’t come back to the basil.
I tamed mine with a baryonyx to kill the manta bodyguards. The time between the first and second feeding interval takes a while, so sit back and grab some coffee while you wait. Regular meat will do as after the second feeding, the interval is only about 10 seconds. Make sure you keep all Megalodons and other mantas away from it while taming. I absolutely love mine for alpha killing and bio toxin farming. Also they get a crap ton of hit points per level up, almost 400.