Yes. They produce salmonella to digest their food. It is important that children don't handle small turtles and put them in their mouth. That is why it is illegal to sell them under 4 inches in size. Just be sure to wash your hands after contact with the turtle.
No, red-eared sliders are not illegal in England.
yes, mini red eared sliders do exist
Yes, red eared sliders eat minnows in the wild and in captivity.
never
yes they can be separated because by nature, red eared sliders are solitary creatures.
no
no
Red-eared sliders typically hatch in late spring or early summer, usually between May and July.
humans
no
A Red Eared Slider can only "procreate" (have young) with another Red Eared Slider but they have been known to "mate" (have sex) with Yellow Belly Sliders. They probably wouldn't try to mate with any other kind of turtle, other than a Slider.
Red-Eared Sliders are Semi-Aquatic turtles.