I had three. The first was a smallish one (2") and ate some frozen brine, but my Yellow Tang kept it hidden most of the time and it died in a few weeks. This was when I was less informed. The second was larger (3") ate frozen brine and mysis and lasted around six months. Ate great until one day it just stopped. Third one was larger too (3") and ate frozen brine & mysis and live blackworms. I had it with a Yellow Tang too. I would feed it frozen with the other fish and every night I'd hand feed it the live blackworms. I'd put the worms in my fingers and let it pick them out, so only he could get them. I had it for a year, then he went to another reefer. I didn't have the time to keep up with the daily hand feedings. My experience with them is: 1 - Don't buy any that don't eat. 2 - Live Blackworms really help these guys. 3 - They don't do well if being harased.
My friend also has one he's had for a while and he's just feeds it frozen with the other fish. Nothing special, buthe feeds his tank way more than mine. So, the daily feedings my not be neccessary in all setups. As far as I know, my wasn't an Austrialian.