My turtle's shell is fading green with a white line. What should I do?

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.

Thanks for reaching out about Lio and including photos. The pictures don't show any concerns except maybe some algae growing on the shell. This might be an indication of poor water quality. Test and correct water quality problems. For optimal growth, red eared sliders need to kept at a specific temperature range for optimal growth. Good luck.

Thanks for reaching out about Squirt and including a photo. The two most common causes of this are mineral accumulations with hard water and exposed bone. Mineral accumulations you should be able to scratch off with a fingernail. Water source might need to be changed to filtered water or commercially available spring water. Exposed bone is usually due to poor water quality (high bacterial or algal loads) that erode the keratin layer. Water changes need to be made more often, but a veterinary visit is recommended as systemic antibiotics might be required. Good luck.

Thanks for reaching out about Abby and including photos. She does appear to have a good amount of algae on her shell. Test and correct water quality as high phosphates and too much lighting are often culprits. The shell can be gently scrubbed with water or a mild soap (Dawn dish soap) and then rinsed. Keeping her dry for prolonged periods of time can kill the algae but if water quality not corrected, problem could re-occur. Good luck.

Hello! What a cute turtle! You are a lucky pet sitter! I'm not certain if you were referring to the top shell (the yellow color or the green color) or the bottom shell... So I will ease your fears and just say that Pikachu looks very normal. The green stuff on the top shell appears to be algae. Not a big deal unless the tank water is completely green. Then it might need to be changed. Everything else looks great! Thanks for contacting us and enjoy!

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.

Looks can be deceiving, but the shell looks fine in the picture provided. "Heathy" is more than just a clean shell though. He should be eating and defecating normally, basking regularly and swimming. There should be no redness or pitting on the shell. Provide clean water at proper temp, a basking spot also at proper temp, UVB lighting and an appropriate diet. You can review the article at the link below to confirm correct husbandry. http://www.anapsid.org/reslider.html