The water quality in our ecosystem is more easily controlled than the water quality in a lake and can be changed faster because it is a more condensed and controlled area. Our aquarium would have less oxygen than a lake because it is smaller and not as open to sunlight, and also does not have as many plants which would mean less photosynthesis and less oxygen. The aquarium would probably also have less oxygen than a river because it is not moving water like a river, therefore it does not get as much oxygen.
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