I second the vote for "Camel Cows" being the toughest boxfish and best suited for aquarium life. They don't like medication or really foul water, other than that pretty easy.
I do have nice color polyp in my tang, they are Blue / Green / Red / Pink Zpanthus, Also have nice color Echinopra (Chalis).
Color Carpet Anemone, Blue /Green /Purple /Red do you have any question of this item?