No Angler should be considered "hardy", because they're far from it.
Also, they're EXTREMELY hard to ID, if you're not very familiar with them. You could be buying a little 2" specimen, but within 8 months, it could turn into a 14" monster.
Wartys are a good species, although expensive. To get a feel for them and to see if you really like them or not, try to purchase a cheaper Sargassum Angler. They usually run $20 - $30...sometimes alot less, depending on where you get it.