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Aquarium Salt Mixes – Choosing the Right Salt for Your Tank

June 17, 2013 2 Comments 16013 Views

Juvenile Queen AngelChoosing the right aquarium salt mix to add to your tank can be can be a confusing process, especially if you’re new to the hobby. But, it isn’t as complicated as it may seem, you just need a little background info to get you on the right path to choosing the salt that is appropriate for your set-up.  

Salt in Freshwater Aquariums

Adding salt to a freshwater aquarium is not a necessity, but it is used by many aquarists as a treatment to add electrolytes to the aquarium water, and as both a stress reducer and a parasite deterrent. Basic Aquarium Salt is not the same as the formulated mixes used to make a brackish or saltwater aquarium. Aquarium Salt is simply Sodium Chloride, and does not contain minerals and trace elements like calcium and iodine like sea water mixes. Adding small portions of this salt can help to treat osmoregulatory stress, an imbalance or disruption in the exchange of salts and minerals between the fish itself and its environment. Stressful situations such as transport, disease, or injury can cause osmoregulatory stress, but if used properly, aquarium salt can increase blood and oxygen flow through the gills, helping the fish relax and heal. When used in higher concentrations for short time periods as a dip or bath, salt can help to build a the protective slime coat on the body, preventing parasites from attaching and even killing one-celled parasites like Protozoa, that may already be on the fish. While aquarium salt does have some benefits, it is not a necessary additive. Once introduced to the tank, salt does not evaporate out of the tank. It can only be removed with water changes and plants, inverts and other sensitive species may be negatively impacted if the concentration is allowed to rise. Read More »

What Is It and Why Do I Need It? – Part 2 – Freshwater Aquarium Salt

October 6, 2010 6 Comments 7661 Views

Many freshwater aquarists use or at least have heard of using salt in their freshwater aquariums, but few seem to know why. Most “read about it somewhere”, “heard it from someone”, or “saw it on the shelf so I must need it”. To some, it may be beneficial but to others it can cause far more harm than good.

What exactly is Aquarium Salt?

Aquarium Salt“Salt” is a very broad chemical term and can refer to an unlimited combination of elements. The salt used in freshwater aquariums is Sodium chloride (NaCl). This is NOT the same thing as what is probably in your kitchen and is NOT the same thing that saltwater aquarists use for their corals and clownfish. The “table salt” used as a condiment is mostly NaCl, true, but most table salt is Iodized Table Salt and contains iodine, de-caking agents, and possibly potassium or other trace elements. The marine salt used in saltwater aquariums is mostly NaCl, also true, but has buffers and other elements like sulfate, magnesium, calcium, potassium and others. All of these extra ingredients can range from unnecessary for to harmful to freshwater aquariums, affecting the biology of freshwater plants and animals directly as well as changing the water chemistry in the tank. For freshwater aquariums, use only salt sold as freshwater Aquarium Salt or pure NaCl like Kosher Salt or Rock Salt. Read More »