My turtle's shell has green spots. Is it algae? How can I treat it?

Thanks for reaching out about Muddy and including photos. By the photos, the lesions do not appear serious. White lesions can appear from other traumas, of which algae can invade. Scrubbing the shell, and keeping water quality good, should work well. If lesions grow, seeking an appointment with a reptile veterinarian is recommended. Good luck.

Sometimes a bit of algae will grow if water quality is not optimal, there is too much light or you are overfeeding. You can gently scrub the shells with a soft bristled brush. Scrub tank walls and tank furniture then perform a partial water change. Rinse the filter media with some tank water, not tap water. Limit light to no more than 8 hours daily and remove any uneaten food every day. Maintain water temperature between 75F and 86F. Any warmer and it can foster algae overgrowth. You can refer to the article at the link below for information regarding care. http://www.anapsid.org/reslider.html

You can use a soft bristled toothbrush to gently scrub the area. Maintain clean water and provide a health, balanced diet along with adequate UVB lighting and vitamin supplementation. all these will promote shell and overall health. Monitor for spread, bleeding, lethargy, loss of appetite, softness or pitting. These are symptoms that should be addressed by your veterinarian or a vet experienced in treating reptiles. If you can provide the species of turtle and an image or two in a new post, we may be able to provide more specific advice.

Hi there! So sorry to hear about Willow's shell troubles. You can try dry-docking him and just letting him into the water for an hour a day to defecate to let the shell really dry out. You can clean the shell with some very dilute betadine or iodine, or chlorhexidine solution mixed one part solution with 10 parts water 2-3 times per day while you dry dock. Keep in mind, when trying to feed him a couple times per week, he'll want to be in the water for that as well as for going to the bathroom. They will not eat when being dry docked. If here is no improvement at all in a week or so, he may need some prescription cream to apply to the shell. Shell rot usually will be a result of water quality not being ideal. Below is a link to Austin's turtle page, one of my favorite turtle husbandry pages, as well as a link about treating shell rot. I hope you find this answer helpful. Best of luck! http://www.austinsturtlepage.com/Care/caresheet-mississippi_map.htm https://www.vettails.com/vettails/2016/2/21/how-i-treat-shell-rot-in-turtles

Turtles need more than a heat lamp for good health. Basic requirements include: clean water, a water heater, UVB light, basking platform, balanced diet and vitamins and minerals. Sunlight is good, however window panes and tank glass block most of the beneficial UVA/UVB rays that turtles need to synthesize Vitamin D3 and to properly utilize calcium. A good UVB bulb should be placed above the tank no more than 12-14 inches away from the basking area. It should not be blocked by glass, Plexiglass or fine mesh. The peeling and white spots may be due to poor water quality, poor diet, lack of UVB lighting or a combination of the three. Keep water clean via filtration and weekly partial water changes. Scoop out uneaten food daily. The filter should be rated for at least twice the volume of the tank since turtles can be very messy. You may be able to get Shelby to eat greens if you offer them about an hour or two after the heat lamp comes on in the morning. This will give her time to warm up. A cold reptile will not eat. Dice the greens and vegetables into manageable pieces. they should be dusted several times weekly with a calcium supplement and a multivitamin. Once she eats the greens, you can offer pellets and protein (feeder fish, nightcrawlers, crickets, raw beef heart, etc.). The spots can be gently scrubbed daily using a soft bristled brush and diluted Betadine or chlorhexidine (Hibiclens). Allow for a 1-2 hour dry dock (out of the water) after each cleaning.If it doesn't improve or if Shelby becomes lethargic or stops eating, then have her examined by a your veterinarian or a vet experienced in treating reptiles. Since most aquatic turtles are red eared sliders or yellow bellied sliders, I have included a link regarding care and keeping below. If you have a different species, post a new question with the species or request a consultation and we can discuss the case in greater detail. http://www.anapsid.org/reslider.html

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

The peeling scutes may be normal shedding. Do not attempt to remove them yourself. Maintain pristine water quality. You can use a soft bristled tooth brush and a diluted Betadine solution to gently scrub the shell or affected areas. Allow for a 1 hour dry dock (out of the water) after each cleaning. If the UVB bulb has been in use longer than 6 months, replace it. Make sure it is not blocked by fine mesh, glass or plexiglass. Provide a balanced diet including prey, fresh greens and vegetables and a commercial pelleted diet. Dust food and prey with both a multivitamin and a calcium supplement regularly.