Small frogs eat small insects, such as crickets, grasshoppers, beetles and ants. They require more frequent feeding than their larger cousins, with most requiring feeding on a daily basis or at least several times per week.
The Radley Sanitarium is located in the fictional Darkette County, Pennsylvania. It plays into the series when Mona is in this facility, but we can guess it has something to do with the story Alison tells about the girl who was sent to a mental institution after killing her twin sister.
The first tuberculosis sanatorium for blacks in the segregated South was the Piedmont Sanatorium in Burkeville, Virginia. Waverly Hills Sanatorium, a Louisville, Kentucky, tuberculosis sanatorium, was founded in 1911. It has become a mecca for curiosity seekers who believe it is haunted.