1 dart with a good longneck in the areas without the shell should tranq them
Be aware that after tameing they still only eat cakes
They need to be wandering to get cementing paste passively.
Clear other creatures before attempting to tame
Before taming, save up a lot of sap, giant bee honey and crops for making Sweet Vegetable Cakes.
You should use tranquillizer darts to knock it out for taming as it makes it easier
Lettuce does not work on P+ for taming
My advice is to catch him with the argent and take him out of the swamps
Sweet vegetable cake is the preferred food for Achatina
And their not breedable! Why. I want baby achatina!!!!