Islands
an island!!
The continent of Australia is completely surrounded by water.
A landlocked country is one that has no coastline and is completely surrounded by land.
i dont no
A large area of land which is completely surrounded by water is a continent. A small area of land which is completely surrounded by water is an island.
islandA pond, a lake, an inland sea, and so forth.A lakePond/Lake
A reservoir.
An island is an area of land surrounded by water.
If by "place" you mean a country or state...the term is "landlocked."
If you have never set up a freshwater aquarium before, it would be best to call an expert. Check Yelp listings for some freshwater aquarium stores in your area. You will find reviews on them and choose which company is best for you.
An enclave.
ismas