One critical question comes to mind just before establishing a fish tank; pet owners have to make up their minds on which species of fish that they want to raise. The two options available are salt water fish and fresh water fish. This decision is normally made based on experience. If you are establishing your very first aquarium, fresh water fish is the best option because of their simplicity as opposed to the more complex salt water fish. However, for the more seasoned pet fish owner, assembling an aquarium for salt water fish can be a wonderful challenge allowing you to raise new kinds of fish. For those of you that have successfully constructed an aquarium or two in the past, and you feel that you have enough experience, here are several facts to consider.
There is a reason why staying healthy isn't hard for fresh water fish and that is because of the rapidly changing conditions that they have adapted to. If something were to briefly interrupt their way of life or slightly vary the temperature of the water in your tank, these fresh water fish are less likely to become stressed or ill. Things change when you are managing a salt water tank. When observing their fish tank, pet owners need to know how sensitive salt water fish are to changing conditions. This will require much more work in order to keep things harmonious.
Obviously, the biggest difference between raising the two types of fish is in monitoring the salt level of the fish tank. Pet owners can ensure that the salt remains at a stable level at all times by checking the specific gravity of the tank on a regular basis. Even the slightest change in the salt levels can put your fish at risk, so make sure that you monitor it regularly. Again, it requires a lot more work, but if you're up to the challenge of a salt water tank and keeping exotic fish - you now know the basic fundamentals.