gago ka
no
yes
A red ear slider
yes
Yes. My red ear slider turtles love to chase, catch and eat goldfish.
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 until the turtle gets hungry!
Red Ear Slider Turtles eat a variety of foods. Yes, they will crickets, you can also feed dried shrimp, pellets, krill, or blood worms.
It depends on where the red is on the turtle and also where you found the turtle. Also, how do you know it is a land turtle? Aquatic turtles leave the water and walk for long distances. If the red looks like a horizontal streak, on each side of the head, it could be a red ear slider. There are many pictures of turtles online and thousands of species of turtles. In the U.S., the Red Ear Slider is one of the most common species, though.
as big as a dinner plate / big
Yes ,they would not hurt themselfs.
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.