I measured Rex and Cinderalla for the first time on September 14.
Measuring the length of their carapace (shell) they are:
1.5 inches (1 and 8/16th) – Rex
1 and 5/16 inches – Cinderella
When we first got them Cinderella was the bigger one. Since she hasn’t been eating as much as Rex, Rex just grew much faster and is now the bigger of the two.