What are these white chalky spots on my red eared slider's shell?

Thanks for reaching out about Kelby and including photos. Can you gently scratch the white areas with your fingernail? Is so, probably mineral accumulations from the water and not a problem. If not, this could be keratin erosion from sub-standard water quality, infections, too cold of an environment. A veterinary visit would be recommended. Good luck.

Thanks for reaching out about Shelly and including a photo. The white on the shell could be hard water deposits that are not really harmful, but a new water source needs to be used. The white can also be exposed bone, which lies underneath the keratin of the shell. This could be due to dietary deficiencies, poor water quality that can erode shell and other problems. Without knowing the cause, there is no home remedy that can be recommended. Diet needs to include whole prey (fish), pellets and offer some vegetables (although many will not eat them). Good luck.

If you have exceptionally "hard" water, it could be calcium deposits, but you would likely have noticed it prior to or during the transfer. Have the water tested to be sure. Dry dock them for 2-3 hours a day for the next few days and see if that makes a difference. You can use a soft bristled brush and some diluted chlorhexidine (Hibiclens) to gently scrub the shells before dry docking. Continue to monitor for lethargy, decreased appetite and softness or pitting on the shells. See your veterinarian or a vet experienced in treating reptiles for a physical exam if necessary.

It could be some minor shell rot. Use a soft bristled toothbrush and some diluted betadine or chlorhexidine (Hibiclens) to scrub the affected area once or twice daily. Allow for a 1 hour dry dock (out of the water) after each cleaning. Maintain pristine water quality via filtration and regular partial water changes. If the spots do not resolve or if they spread, have Squirtle physically examined by your veterinarian or a vet experienced in treating reptiles. A UVB light source, calcium powder and multivitamin will promote shell health. You can also float a piece of cuttlebone in the tank for him to munch on as needed. It will provide additional calcium. Find the cuttlebone in the Bird section of the local Petco. The link below will provide additional information regarding the care of sliders. http://www.anapsid.org/reslider.html

Use a soft bristled brush to gently scrub areas. Heavy deposits can be scraped gently with the edge of a spoon. If you can treat the water, that may prevent deposits. A bit of algae growth may also "soften" the water as will powerful filtration. A filter rated for 3-4 times the volume of the tank may remove enough minerals to decrease accumulations.

Thank you for the pictures - they are very helpful. I am sorry that this is happening to Finley! Her shell looks very dry - I am not sure if you dried her for the picture, or if she is not hanging out in her water enough. If she is not utilizing her water source enough, that could cause her shell to get dry and flaky. With your description of the shell looking cloudy and white underneath the layer, it could also be that there is an infection (bacterial, fungal) of the shell. If the water quality in Finley's enclosure is not adequate, this can result in infections. I would recommend that you take Finley to a veterinarian who is familiar with reptiles. To find one in your area, you can visit the ARAV website. The veterinarian will ask about Finley's husbandry set up and diet, and will perform a thorough examination of her. They then can take samples of the flaky, white, cloudy areas of the shell to evaluate for culture to determine if there is an infectious reason for it to look abnormal. They may also prescribe treatments, such as antibiotics, or have suggestions for husbandry changes, depending on what they find. Please do not give Finely any human medications, as they can be harmful for our scaled friends. I hope that gives you a place to start, and I hope Finley feels better soon!

UVB lighting is critical to shell and overall health. If you don't yet have a UVB light source, you can take Jazzy outside in full sun for at least 60 minutes daily. Use caution to prevent overheating though. Perform a partial water change (30% total volume) and scrub and tank furniture. Confirm the filter is rated for at least twice the volume of the tank. You will likely need to perform partial water changes weekly or every 2 weeks to maintain water quality. Turtles eat and defecate in the water, so it can get dirty very quickly without regular maintenance. Scrub Jazzy using a soft bristled toothbrush and a diluted Betadine or chlorhexidine (Hibiclens) solution. Allow for a 1-2 hour dry dock (out of the water) after each scrubbing. Monitor for lethargy, loss of appetite, soft spots on the shell or pitting. These are symptoms that should be addressed by your veterinarian or a vet experienced in treating reptiles. You can review slider care at the link below. http://www.anapsid.org/reslider.html