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I suspect you got your information on care from a pet store. Most people do. While we should be able to rely on such information, unfortunately, it is often wrong. They sell people the wrong lighting, advise the wrong foods, and often don't know the correct temperatures for the various reptiles. After months of things not being quite right, the animal becomes ill. Some of what you have been told is wrong, and I suspect that is why your tortoise is not doing so well. Even though you have been trying so hard to keep it healthy, when you didn't have correct information to begin with, things are going wrong.
You've taken a good first step with the daily baths, but I'll give you a way to make them better.Buy some unflavored Pedialyte (yes, the kind for human infants). Prepare a shallow bath consisting of 1/2 water and 1/2 Pedialyte. Soak your tortoise for about 20 to 30 minutes twice a day. Reptiles can absorb the electrolytes and fluids through their vents (where droppings pass out), so make the water deep enough to cover the vent. Be sure to supervise closely, and make sure the nostrils are not under water.
I suspect the tortoise is suffering from malnutrition. Dandelions are a good food, but are inadequate without other foods. Tortoises need a high fiber diet. Greens are important, but greens alone don't contain enough fiber. Hay and grasses should be a big part of the diet. If you don't spray your lawn, and can supervise well, take your tortoise outside to graze. He/she may like to eat grass, weeds, and flowers. Letting it sample such a buffet may encourage him to eat a greater variety of foods. If going outdoors isn't an option, buy some tasty varieties of hay. Oxbow packages high quality hays for pets. I found one company that will ship Oxbow products internationally. The botanical blend would be best for tortoises because it has a mixture of hays and herbs:
Of course, greens such as dandelion, collards, and turnip greens are also good, but your tortoise really needs the fiber found in hays and grasses.You can supplement calcium with calcium carbonate powder or give your tortoise a cuttlebone (available in the bird department of pet stores). You can read more about diet at the following sites:
The sites have a lot of other information on care which you'll probably enjoy reading.
Your tortoise may also be cold. You'll need a digital probe thermometer to accurately measure temperatures. The gradient in the enclosure should be 75*F to 85*F, with the basking area warmer yet, at 95*F. Night temperatures can go down to 70* to 75*F. Proper temperature is extremely important. If a tortoise is chilly, it may become lethargic and refuse to eat.
If taking these steps doesn't result in the tortoise coming out of the shell and becoming more active, it is probably sick. In that case, a reptile vet will be needed. There are lots of good vets for tortoises in california. This link will help you find one:
If you have more questions, let me know in a REPLY. I hope your tortoise will be fine.
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