A salt water fish aquarium is considered one of the most fragile aquariums when talking about maintenance. The main feature of a salt water fish aquarium resembles the oceanic environment for the saltwater fishes. If the freshwater fish can live in almost any conditions, the saltwater fish can be very sensitive to temperature fluctuations.
When talking about the salt water fish aquarium, you should know that this must be larger that the regular fresh water aquariums. The fishes will need much space in order to survive and it is recommended to have only few fishes in it. Another advantage when owning a big salt water fish aquarium is that the temperature will remain constant. There won't be any fluctuations.
There is no need to buy a heater (unless you really want to) because the temperature remains almost the same. This type of aquarium also might help to maintain the pH balances and the nutrient levels in the water. You must keep in mind that any sudden fluctuations could make your fishes ill or they could even die. A salt water fish aquarium is more difficult to set up than a regular fresh water aquarium.
Although, the advantage is that they make good ecosystems and are easy to maintain. Even if your salt water fish aquarium is easy to maintain you should also have great care about it. If you never had an aquarium before it is recommended to start with a fresh water one, just to learn the basics. Later on, you will remark that you are able to take care of a splendid salt water fish aquarium. Another important thing is to select carefully the right kind of fish for your aquarium, because a fresh water fish will die in saltwater. If you need advices do not hesitate to ask questions at your local pet shop.