First of all, keep him out of the light, he hates bright light, especially sunlight, it'll kill him. Second, don't give him any water, not even to drink. But the most important rule, the rule you can never forget, no matter how much he cries, no matter how much he begs, never feed him after midnight.
i love these guys i remmeber on my first time playeng gen pat 1 i had a good amount of dinos then this ferox came along i realiesd i could tame it and it killed three of my rexes and i did swear when i ran away and one hit broke all my flack and killed me but super handy dandys ( if u kill one i will hunt u down until ure head is on my wall do u hear me A WALL!!!!!