Updated On September 12th, 2017
Pet's info:
Answered By Dr Stafford, BVetMed, MRCVS 156
Veterinarian
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Hi there, there are a few possibilities here which I will describe, unfortunately I can't be more precise without seeing them. Worst case scenario is that this could be an infection causing shell rot, but it is likely in the early stages if so. Usually the shell will feel soft and can be smelly. Alternatively it may be discolouration caused by something in the water such as dye or certain algaes. Usually discolouration will come away when rubbed with a cloth. I would suggest heading to a good reptile vet to be in the safe side as if it is shell rot it is much easier treated early. Best of luck!
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