Welcome to YT!! And i agree with everyone...stick with the one he likes...and try adding a little bit of soft food to it..see if that works..thats what i had to do with my wyatt...i put the wet food in the bowl first then the hard food...then eventually he just started eating the hard food...i understand cause i was scared at first too...cause he wasnt eating..but it just takes time and nutrical..for his blood sugar!!! I actually bought 2 tubes at first..thats how scared i was!!!
But

on ur new furbaby!