What's the difference between a fresh water aquarium and a salt water aquarium

I know that the difference is salt ;-). What I'm really asking is about the upkeep of both aquariums and which aquarium will be better for my 16 year old son.
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1 Answer

Answer :

A fresh water aquarium is easier and less expensive to deal with especially for beginners. Salt water fish are more colorful but also more costly. You need to have an experienced person knowledgeable about salt water aquariums to help you change water in the tank.
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