Update and tips:
My new blue stripe is eating great. Most personality I've ever seen. Takes lip from NOONE he holds his ground. He gets along with all my fish and eats more aggressively than anyone. I've read on other sites he may be an obligate coral eater but I highly doubt that as mine eats clam, mysis, mega marine angel, nori, algae, blackworms, and I'll try dry tomorrow
A few tips if you want to try out butterfkyfish:
Always have live food when you order or buy one. Before you order or buy one make sure you have an lfs around who sells live food otherwise order some with your fish. Most don't take frozen right away, it's really the exception if they do. Live brine and live blackworms have always worked for me with blackworns being my go to. Thanks Paulb! If neither of those work you can go to your local grocery store and buy fresh clam, oyster, shellfish etc. And cut off little pieces and feed that. If they don't recognize the clam pieces I recommend buying the smallest clams you can find and put the whole clam in, no fish can resist just don't leave it in longer than 3 hours. After that you can wean them onto other foods over time
I also drip acclimate all my butterflies with the methods above in this thread
I also think they need peaceful tankmates. My most aggressive fish is a 2 inch coral beauty. Add them early in your stocking as they can't really defend themselves if you have an established powerhouse and a stressed fish won't eat especially a delicate fish like these
If your butterfly doesn't eat for a few days after you added them don't stress, just don't overfeed. They will learn in time, just keep trying live food 2-3 times a day. Some will never eat dry food and my raccoon will only eat certain foods if I hold them in my hand, I have no idea why. He will eat blackworms falling but won't eat clam that way, I have to hold it lol
I am absolutely not an expert, this I'd just what works for me in my tank