I had felt the same way previously . Always stayed away because of the obligate corallivore designation . Always thought , I don’t have coral so how can I keep them alive . Saw a pair of exquisite CBB in a lfs . Didn’t purchase but vowed to myself that I would learn all about them . Thanks to all of the reefers posts here on R2R . I then realized the feeding issues so instead I looked at other species of butterflies at LFS , picked out those that were eating and tried them first . Now I love what I bought and looking to expand one of them in my tank . I fell in love with the red collar Pakistani . I dont know if I ever will get a CBB . I now know how to entice them to eat . Worms !!!! So if I ever decide on CBB , I already have experience with other butterflies . And get ready with a batch of live worms . I just wish I had marine worms to propagate and use as feed instead of terrestrial worms