here at the refuge,we have 2 land turtles here (boxes maybe?) that both are having similar problems. if only 1 was having it, ide think it was a problem that was limited to only that one. but now it looks like its catching on. is the shell turning this way because of a deficiency of some sort? maybe because of no uvb light? no heat lamps? have yall seen this stuff before? if i can get help here, i can come to the owner and ask him if we can either let them go because of this, or re-do their living conditions. thanks