Congrats on your new friend! I love my Sumatrans to death! She will really only eat gerbils, though? That seems like it would get really expensive and I don't see how a gerbil could be anywhere near large enough to sustain an adult Sumatran or promote proper growth. Maybe i'm wrong, though... Do gerbils have much higher protean like African Soft Fur rats? Are you sure the previous owner had exhausted all efforts to try getting her to eat rats? Did he ever try feeding her African Soft Fur rats? I know I had a hell of a time getting my Sumatrans switched over to frozen/thawed rats, but I found that heating the thawed rats up with a heat gun/blow dryer at feeding time worked like a charm.