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.
Best taming method is by getting a snow owl with 6k stamina and after you gave it element freeze it till u have no stamina and it will transform back to normal without big problems. Like so other can see