Sorry to hear about the emerald's crabs and bubble algae. Feel very grateful that I haven't had to deal with that nightmare...yet. I'm a huge fan of weird too

Unfortunately so many of the really weird stuff require specialized systems :mad: But love the awesome inverts that we can get. I have a pompom crab that I adore and just got a blue tuxedo urchin.... put out a bunch of tiny frags of zoas that I don't care very much about hoping he'll pick them up while I'm out of town for work this week.
Purple tangs are absolutely stunningly gorgeous and I love their shape. So great to hear that he's a good eater and friendly with the other fish

Don't have much experience with tangs aside from a smallish yellow tang that mysterious dissappeared in my boyfriends forty breeder and a quarter size blue tang who is absolutely my favorite fish EVER. Follows the clowns everywhere and refuses to eat nori bc the clowns don't eat it (he ate it when we first got him but within a week he would only eat pellets and mysis and brine, go figure

) ANYWAY enough about me, really enjoy following your thread. Keep posting pictures