no
A red ear slider
gago ka
yes
The red ear slider turtles mostly get along fine in groups, there are the occasional turtles that would most definitely like to live alone. They consider other turtles competition for finding a mate.
Yes. My red ear slider turtles love to chase, catch and eat goldfish.
Red Ear Slider Turtles eat a variety of foods. Yes, they will crickets, you can also feed dried shrimp, pellets, krill, or blood worms.
Yes until the turtle gets hungry!
as big as a dinner plate / big
Yes, pond hyacinth is fine. Turtles can eat that plant.
Yes Red ear slider turtles hibernate. If you have a lamp though it might not because it doesn't know when it's cold. So if you want it to hibernate then turn off it's lamp in the winter, so it can experience what it's like to be asleep for a whole season.
As a rule of thumb, you should not feed your turtle anything bigger than his head. Aquatic or semi aquatic turtles can eat fish. However, if you have them in a tank, even with filtration, it can cause an oily film on the surface of the water.