The easiest, but most time consuming, way to get a basilo is to tame all the mantas first before you tame the basilo. First, you go to the deeper parts where the anglerfish spawn, and you kill them and harvest their angler gel w/ your megalodon or other powerful sea mount. Once you got an acceptable amount of gel, you go up to the basilo and mantas, make sure you have the gel on the last slot, and spam-click Y/E to tame all the mantas. Once you took care of the mantas, switch the gel w/ prime meat to tame the basilo. Enjoy your basilo and your small manta army.

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