Hi all! I have just gotten a new turtle, Lucy, and she is incredibly energetic, eats like a fiend, is jumpy but starting to get used to us, and looks healthy from eyes to tail. I had two questions about her care.
1) She had one tiny hole in her shell when I got her -- I figured that was normal. This morning, there are some whitish spots between panels on her back. I disinfected everything before she moved in. If it gets much worse, I will take her to the vet, but for now I wonder if there are any home remedies for shell health that people recommend? Her tank is at 78 degrees, she has a nice basking area on a rock in her tank, I take her outside occasionally to get real sunlight, and she eats reptomin pellets (and lots of them) and is about to start on cooked chicken. She's about 5 inches long. I have a topical spray for shells, but my vet said he sees no reason why it would be effective.
2) tank health! I have two filters working on a 32 by 12 by 12 tank, and I change the water often. I wondered if any kind of additive would make the water less hospitable to infections without making it less hospitable to my turtle. Any suggestions? I am moving back to school at the end of the month and it will be more difficult to clean the tank in my dorm, so I'd like something which means I don't have to do it that often. Also, how often to you clean your tank?
Thanks all.

