How to tame a giant squid.

First get black pearls. You get black pearls by killing trilobite, euryptids, Alpha mosas, and alpha tusos. Tusos take a lot of black pearls so I’d recommend getting a lot. Alpha tuso and mosa give the most pearls. Killing trilobite or euryptids will take some time to get a lot.

You can either use a tamed carbonemys or a wild one. If your gonna use a wild one bring the tuso to the top of the surface. If you bring it to the bottom it will probably die since the water breathing hasn’t been upgraded. Get 1 or more by attacking it and making it follow you once attacked. Bring the carbonemys to the tuso by attacking it and you’ll tame it. If your gonna use a tamed one you could choose to bring the tuso again than tame it or just go down there.