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.
Have element in your last item slot like when taking a bulbdog. After you feed the Ferox the element I will grow in size and try to kill you. When it turns into my Mom in the morning, all you have to do is survive, then it will be tamed.
All Ferox are 2 element so really easy tames, best thing to do is knock out and tame with mejos however as the Ferox transform after 1 element and you have to survive around 20-40 seconds until it transforms back. Don’t be fooled by these cute jerboa relatives as they have a nasty drug addiction which can blow your mind...
Wild Ferox will approach you, with this in mind stand on a foundation with 3 walls to your back and a ceiling 2 high, feed the Ferox element by using it out of your hot bar and escape before it can transform fully, wall it in and wait for it to calm down and afterwards you’ll have your very own Murder Squirrels