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Why won't white spots on my yellow-bellied slider's shell disappear?

Updated On September 23rd, 2025

Pet's info: Reptile | Aquatic Turtle | Female | 3 years old

Four days ago, I noticed some white spots on my Yellow Belied Slider's shell. These spots were not there before. I got worried so I searched about it. According to various sites on Internet, these white spots can be caused by bacteria if I have not change the turtle's water in some days. Now I change the water daily or every two days. But the white spots have not disappeared yet. What should I do? Should I worry?

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1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on April 12th, 2018

This may be normal shedding of scutes. It may also be infection, rot or due to poor water conditions. Continue to maintain water quality via water changes and/or a filter. You'll also need to heat the water and provide a heat amp and UVB lighting to promote shell health. A balanced diet and vitamin/mineral supplementation are also important. To treat minor infection, continue to maintain clean water and use a diluted betadine or chlorhexidine solution and a soft bristled toothbrush to gently scrub the area daily. Allow for a 1-2 hour dry dock after each cleaning. Monitor for worsening or spread, redness, pitting or softness of the shell. See your veterinarian or a vet experienced in treating reptiles if necessary. If they are juveniles, a 10 gallon tank will be fine for now. As they grow though, you will need to provide a much larger tank. The general recommendation is 10 gallons per inch of turtle. You can review slider care below. Red eared sliders and yellow bellied sliders share very similar care. http://www.anapsid.org/reslider.html

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