I beleive that what I got is an Humerosa and it looked in really rough shape at LFS when I picked her up (bad water, I tested it!) but got her home and into my tank and within hours she was already showing way better color and eating later that night and within few day even got her eating shrimp and smelt's, which has take in forever it seem's for my retic to get use to. So thus far I I think Humer's are a pretty hardy ray and easy to acclimate. SHe is buy far my favorite ray right now and most active.