these are difficult only fish, and need plenty of luck to get a healthy specimen
a mature tank with natural food source - algae, pods, tiny shrimps etc etc - will greatly increase their chance of survival
my experience with these fish
multibar, once, died after a month, maybe tank not matured enough
regal, once, after 3 months still depend on natural food source, end up sell to a reefer with larger tank
golden, twice, both feeding but died after 4-6 months, 1st died when i went taiwan holiday, 2nd due to "hole in head"
good luck bro