I was recently cursed with a bicolor angel rescue. I was aware of their craving for coral flesh but he was in a reef tank for 5 years perfectly obedient. Apparently his corals weren't very yummy. Literally the first 2 seconds in my tank and he nibbled at both my open brain corals. Ugggg, so I tried my plan b and spent a while trying to catch him with no luck. I let him be for a bit and decided to take the brains to the quarantine tank to revive a bit. Immediately they opened fully. Now the angel is a perfect tank mate. Now I just have to watch my few acans and see how he does with them. I wish I was an angelfish so I could appreciate the flavors they look like they have