Glad to hear your turtle is doing better. Close call it seems.
I live in Arizona and have 3 Sonoran Desert Turtles. 21 year old, 9 year old, and 1 year old.
I think they are little easier to take care of than the turtles you have. They hibernate from Halloween to Easter. We barely feed them, as they just eat the grass and some native plants we have in the yard.
When they are young, till about 2 years old or so you have to keep a good eye on them, typically in an terrarium, where you have to give them water and lettuce on a regular basis.
They live to be about 100. So, my daughter who is only 8 knows she is in it for the long haul after we pass away.
Here is the the 1 year old "Shell Silverstien"
Here is the 9 year old "Flash"
Here is the 21 year old "Cleo" accidentally gave him a girls name before we realized that she was a he...
The males have a large rear turbo flares, concave belly pan, and a huge front air damn. True...
Oh and the 1 year old is the child of the other two. We always read that the females are not fertile until they are about 13 years old. Well they are wrong. Ours was 7 when we found the baby in the yard. So, now we have to keep them separated. But there could still be more to come as the females can store the sperm for over a year. So, maybe in August / September we could find another baby.