Coral safe could be an issue.
However, I have had a coral beauty, flame and multicolored together in my 65 for about 2 years now (( the coral beauty and multicolored were together an additional year, prior to my move )).
The flame was in an acclimation box for 6 days before being released into the tank (( had the flame for a year prior, was paired with a flame { died during the move } and an C. deborae in a 75 )). There was some minor chasing at first, but nothing that made me concerned.