Aquarium Salt Mix: Salt for Saltwater and Freshwater Fish Aquariums

If you are buying saltwater for routine water changes, buy as much as you would like to store for future use. Buying in larger quantities will save you a few more dollars. It is also important to have additional salt on hand should an aquarium emergency arise.

See the suggested level of this parameter for your saltwater aquarium on the chart below.

For more perspective on how powerheads are used, cruise our to see how other saltwater aquarists have incorporated them in their aquarium set ups.

Saltwater Fish: Marine Aquarium Fish for Saltwater Aquariums

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Wash out your tank with water only! Do not use soap or detergents. Soap residue left behind will be harmful for your saltwater fish. Smoke test your aquarium by filling it with fresh water and check for leaks. If it passes the leak test, drain the fresh water from the aquarium.

Beginner Fish: Tropical Fish for Beginners in Saltwater Aquariums ..

Use a clean 5-gallon bucket to mix the saltwater. First fill the bucket and then remove the chlorine and chloramine. Use something like Tetra AquaSafe for Aquariums. Read the directions on the salt mix package carefully and then add the salt mix slowly to room temperature water. Stir it well and test it with your hydrometer or refractometer. Once you get a reading between 1.021 and 1.024 you can add the saltwater to your aquarium. Repeat this process until you have filled your tank. If you have a large aquarium you can mix the salt in the tank. Mixing in the tank can be more difficult and messy, so just be sure that you have thoroughly dissolved all of the salt mix before using the hydrometer.

Angelfish for Sale: Saltwater Angelfish for the Home Aquarium.


Before changing any water, you first need to match three measurements - salinity, temperature and pH. The new saltwater and the tank’s water need to be matched as closely as possible to avoid stressing your fish and corals. It's best to mix new saltwater near the aquarium if you have the space, to avoid pH changes that can arise from the different environmental conditions in different rooms. Using a thermometer, measure the tank's water and then the mixing container's water. By using the same thermometer, you'll know for sure what the variance is, instead of using two separate thermometers, which may not be calibrated accurately to give correct readings. I always move the temperature probe from the container to the tank to see if the temperature matches. If the new water is within one degree of the tank's water, it can be used. During winter months, a heater in the mixing barrel brings up the temperature during the 24 hours I allow the salt to mix.
There are three common types of saltwater aquarium setups. The Fish Only, the Fish Only with Live Rock (FOWLR) and a reef tank. I really just consider two of those as viable setups. The fish only set up is really kind of difficult in terms of biological control of the filter and (in my opinion) makes it harder to keep a saltwater tank without live rock. Live rock is awesome and will become the primary biological filter in your tank. FOWLR tanks are the way to go for someone new to the saltwater side of the hobby. Reef tanks require a little more precision and can be much more expensive to set up and stock because they require more equipment and more expensive livestock usually.