:?: i have a map turtle and a river cooter in a 2 ft soon to be bigger set up with a basking (uvb) light and a flourescent (uva&b) light system. both are 4-5 months old the map is maybe 3" and the cooter 2". i feed them a calcium powder suppliment maybe 2 times a week and some cuttle fish every 2 weeks. i am wondering how hard the shell should be i know i am probably just a nervouse 1st time keeper but both shells will flex with a little pressure from a finger and i was wondering if this is normall or should the shell be completely solid. both seem happy and feed readilly and out side of a little skin shedding seem to be fine. any help would be greatly appreciated thanks.