I learned that both 'in' and 'inside' convey the same meaning. For example, There were two eggs in/inside the pot. But I would like to know if there are any big differences between 'in' and 'inside'. What is the difference bewteen the following sentences. 1. My uncle was putting a fish in the tank. 2. My uncle was putting a fish inside the tank. Can I say that the above sentences convey the same meaning? Many thanks!