Step 1: If you want to breed. Check stats before you feed it anything.
Step 2: if you like the stats give it one element and check the stats while he has turned since the first transformation changes things.
Step 3: If you like the stats still knock it out with a arrow to the head and feed it 5-6 mejo berries.
As of 3/28/20. Ferox will tame at the wrong level but once put in cryopod will correct to tamed level. A live 145 changed to 217 once in pod post tame. Also dododex is not accurate on x3 possibly x1. The same 145 took 20 element for full tame. At 5% per element. Please if this was helpful take it to the top.