huma-huma
Aquarium Advice Addict
i really cant speak as to their ease (or difficulty) of keeping, mainly because ive only had experience with 1. but i can say that i bought mine from LA when they were on sale (still are on sale, just not as low as when i got mine) and he took to pellets/frozen/ algae sheets as as easily as any other fish i have. he ate constantly and never turned food away. only thing i noticed is that purples tend to be a bit on the aggressive side when it coems to that family of tangs. as for the achilles, i would personally avoid them unless you have a larger tank, 200g+) thats very well established.