They are super easy to tame if you have a sarco, all you have to do is lead the rays away from it and then feed it and every time things come back to attack you just lead them away, then go back and quickly feed it. Rinse and repeat.
Ride dolphin or manta, water creature won't attack you while riding a water dino, then go near basilo feed it, Don't unride or you'll see your self dying, put food on your hot bar then click it when near basilo u can feed basilo without unriding. Up! So no noobs will be eaten by manta or megalodon lol
Okay, so I saw one in a river opening on Crystal Isles. I thought the mantas attack you as soon as you go near. So I slowly approached the tail near the river bank. The mantas didn’t agro on me, I thought I was just far enough away. No. Oh no no no noooo. It turns out the mantas ATTACK the second you feed it. Please don’t do what I did haha
Pro Tip: Basi’s won’t spawn with a whole gang of mantas on Gen 1 map, making it much easier to tame. You also have increased oxygen and swim speed in Gen 1’s Ocean Biome so you won’t need scuba gear and you can outswim Megalodons easily.