I kept one several years ago and it came direct from HI. It ate out of the bag, and would eat everything you threw in the tank. However it still wasted away after about 9 months. It is believed that there is some vitamin or nutrient the Idol gets from its natural environment that we can not provide in captivity. They also dine on sponge in the wild, and would benefit from mature live rock to peck on. I actually have another coming diver direct this wednesday. My goal is to keep this fish long term, but the odds are definitely not on our side.