My Yellow Tang is picking on my new Fox Face

[i have crabs]

i had a foxface and a yellow tang in a 130g,the yellow tang bossed him around and bullied him quite often,after about 6 months i woke up one day and my foxface was beaten almost to death and died the next day,im almost certian it was the tang who did it.either way i wouldnt keep them together its not a good combo and they wont live together forever.