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Why is my turtle's shell black spotted, not eating, and inactive?

Updated On September 23rd, 2025

Pet's info: Reptile | Tortoise | Female | 15 lbs

Hi, my tortoise (small one) has black dots since I bought it and today, I noticed the black dots are expanding. He didn't eat anything himself except when I fed him with a stick. He also didn't move and sleep for 23 hours a day. What should i do?

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 27th, 2019

You have a slider, which is a semi aquatic species of turtle. Tortoises live on land exclusively. The black spots may be some algae growing or it could be early rot (infection). Maintain pristine water quality via filtration and regular partial water changes. Use a soft bristled toothbrush to gently clean the shell. If the spots persist, use a diluted Betadine or chlorhexidine (Hibiclens) solution along with the brush. Scrub once daily and allow for a 1 hour dry dock (out of the water) after each cleaning. Promote shell and overall health by providing UVB lighting, vitamin and mineral supplementation, a balanced diet and appropriate heat support. You can review slider care at the link below. http://www.reptilesmagazine.com/Red-Eared-Slider-Care-Sheet/

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