Rey's swarm them you need to kill them before you tame the basilosaurus

I don’t know why, but nothing in the sea agrros on the dolphin. So it’s best slowly killing the mantas and then feed the basil

How to Tame a Basilosaurus (non-violent tame)

Step 1- Lure it to the surface where it can still swim.

Step 2-Start feeding it fish.

Step 3-Use soothing balm.

Step 4-Continue feeding it fish.

Good luck

Ignore posts about taming bar going down, you need to tame it using only the food you give it from the start, if you change the type of food you give it, it then resets the taming bar

It takes a while to eat the second time, so don't fret

Tame while riding an ichthyosaurs!! You can outswim the mantas!!

To tame this creature you need an Ichyosaurus, because nothing will attack you if you are riding it. It takes a while for it to to start the second feeding. Also, make sure you’re using the same food or the taming process will restart. A must-have to get biotoxin, because they are torpor immune. Will receive damage if you go to far down, but rapidly gains health at the surface. If playing on mobile, go to unofficial server called (Official) Pearl’s Legacy. -KingJadon08

Can apparently fight cnidaria without getting electrocuted

If only it had a horn then it could be a narwhal

Don't raise deep underwater it takes pressure damage even in caves

Be careful because mantas love to swarm him and they are a passive tame give them prime fish meat or normal fish meat

To tame the basilosaurus it's a passive tame so kill every thing around it and start feeding it

Rare Flowers affect the Basilo (slightly inconsistently) allowing you to kite it into your own water pen for a super safe, even easier tame involving much less swimming about. Seems to require you to eat at least 2 flowers to trigger the aggro effect, and it loses aggro the second the effect ends.

Bring baryonx it stubs mantas up vote so people see dis

I saw my first Whale in the bay of Herbivore Island, I was like, hey, it’s a whale, i don’t have any proper sea tames (I had a sarco but that doesnt count) so I got raw prime and fed it that, I ran out of raw prime, Omygod omygod. I used normal raw and the taming bar DIDN’T GO DOWN! So basically I skipped the sharks and Ichthys and went strait for the Basilosaurus. IT IS AWESOME! I highly recommend a whale and they are very common around herbivore island (heck, there’s a new one in the bay now)

Easiest way to get rid of their flock of mantas is use a barry to stun and kill them, they can also keep up with the basilosaurus, kill any sharks or other creatures easily and oxygen isn’t a stat on them

Is not affected by Cnidaria or electrophorus shocks, this in addition to its surface healing makes it a great mount

It's best to get a baryonyx to stun and kill every manta around it

The one I came across had mantas around it...LOTS. thought I killed em all... Nope. Make extra sure you kill them, and look around a bunch before attempting anything with it

Take care... They are surounded by Mantas which block you... So you can't run away. 10 of them kill almost everything.