Before moving to the benefits of aquarium salt let us first understand about aquarium salt with its types and usage.

What is Aquarium Salt?

Benefits of Aquarium Salt

Aquarium salt is a salt made up of the evaporated sea salt which is widely used in today’s aquarium. But don’t get confused with aquarium salt as a table salt or iodized salt. Table salt or iodized salt has anti-caking additives but the pure salt like aquarium salt does have these additives. And also keep in mind that you should not add too much of aquarium salt to your fish tank because too much of the salt will kill your fish damaging fish’s kidneys.

You need a dose of ½ teaspoon of aquarium salt per gallon of water. And another thing to keep in mind is that, when the water of the fish tank evaporates, aquarium salt does not. So, while adding water to your tank to cover the evaporated portion, you should not add salt. You should only add aquarium salt to your tank when you do a water change.

There are many benefits of aquarium salt. Aquarium salt helps the fish to live longer and improve the health of the fish by improving the gill function which helps the fish to breathe easily. Aquarium salt also provides the necessary electrolytes which are very important to reach the peak coloration and vitality. These electrolytes in water may lose when the water is changed in the aquarium and need to be replaced with a new aquarium salt.

Aquarium salt can be used to reduce the fish stress and helps in slime coat production. These salt also help in killing the parasites which are very harmful to the fish in the aquarium. We should not add a lot of aquarium salt in the aquarium, we need to add only the right portion needed by the aquarium size and type of fish you are keeping in the aquarium. It covers a range of different salts which we can add to the aquarium water. The use of salt in an aquarium helps to inhibit algae which keep the aquarium free from slimy stuff on the glass. It also helps the boosts the fish immune system and helps in recovering from the wounds. Salt also keeps away many pathogens and fungi, improving the fish health.

A common infection ich or ick, among fish, is caused by the protozoa. Other benefits of aquarium salt are that it helps fish get recovered from the injury, torn bacterial infection and bitten fins. It also reduces the fish stress by aiding the gill function. By adding the aquarium salt in the aquarium the fish kidneys do less work because the water which is absorbed in the blood with the help of gills is reduced. It might look slightly counterintuitive to add salt to a freshwater fish tank, but certain aquarists believe that adding salt to the fish tank will benefit the fish. Not all specialists trust salt in a freshwater tank a good thing, but most approve that if you do enhance salt, it should be the true kind of salt and for the accurate reasons.

Types of Aquarium Salt

It may appear a little counterintuitive to add salt to a freshwater fish tank; however, some aquarists trust that there are many benefits of aquarium salt, adding salt to the fish tank will benefit the fish. But, not all specialists trust salt in a freshwater tank a decent thing, but most approve that if you do add salt, it should be the right kind and right amount of salt, for the correct reasons. There are lots of salt available but only a few of them are appropriate to be used in aquarium water. The different types of aquarium salt available are given below:-

Freshwater Aquarium Salt

The exercise of adding salt like Sodium Chloride, rock salt, table salt, solar salt, aquarium salt to freshwater aquariums takes around nearly as extensive as the hobby.  There are numerous reasons why hobbyists add salt to the aquarium, stress reduction, medicating, addition hardness, then for fish frequently found in salty water.  It has turned out to be a common practice for employees of big box stores to tell all of their freshwater customers to increase a teaspoon of salt per 10 gallons.  This is not a great practice or greatest advanced that hobbyist participates in, nor one recommended.  Before you add salt to a freshwater aquarium, you should understand why you are doing so, and several likely side properties.

Non-Iodized Rock salt

Non-iodized salt is a superior type of salt that does not comprise chemical element. This salt is similar to “regular” iodized (or, table) salt. Both have sodium chloride as their main fundamental; nevertheless, but iodized salt has the chemical element iodine additional.

Non-Iodized consists of less potassium iodate solution. This is a very low cost and effective manner of providing the iodine. Non-iodized salt is usually made by evaporating the water from wells and also lakes with a high salt content. Moreover, mining of rock salt is an alternative large source of non-iodized salt.

Marine Aquarium Salt

Marine Aquarium salt is a salt in which there are traces of minerals and elements which is very helpful in keeping the pH level higher in the water. The exact amount of trace minerals and elements are varied from manufacturers to manufacturers. A quality marine mix is one that is balanced and which is also exactly balanced in pH level. The right amount of optimal calcium, right alkaline and strontium levels. Fish will take full advantage of this salt in the aquarium to live healthier and longer.

What are The Benefits of Aquarium Salt?

There are different benefits of aquarium salt which can be used in a different manner in an aquarium. Salt (sodium chloride/ table salt) does, in fact, make sure a direct linking to osmotic pressure. To enlighten this, picture a fish in an aquarium. The inner density of fish is inordinate than that of the water (fish comprise salt in form of sodium and chloride ions transported by the blood).

Osmotic pressure can be finest defined as the water trying to dilute the fish’s body until both sides are equal. Freshwater fish, therefore, have to continually remove the water – mainly through breathing and urine.

Prevention of nitrite poisoning

The nitrite level should always be zero, or as nearby to zero as you can get it. Under certain circumstances, even comparatively low nitrate levels of 0.25 mg/l may be sufficient to decline sensitive species. Everything above 0.1 mg/l is viewed as an improper and probable cause of stress, even though some fish might bear high levels. Your system will stay fine as well as healthy if you keep your system fresh and not overfeeding your fish. Consistent small feeds during the course of the day are better than sudden large feeds. Fish occasionally go off their feed for a day or two.


Parasites are the roundworm, tapeworm, thorny-headed worms, and flukes. The fluke is a parasite worm that is noticeable on the skin or gills of the fish. Defining to free the tank of these worms basically does not feed your fish for 2-4 days as they will often feed on them. Only 0.4 – 0.5 mm in measurement, this oval formed worm can spread and results in fish death. External parasitic worms cannot easily be diagnosed. Advanced phases can be visible by sores on the skin. On the other hand, not all external worms do pretense a threat to the fish.

Reducing Stress

Throughout times of stress or when fish are diseased, their gills may not function competently. As per an outcome, fish can experience osmotic shock. When fish experience osmotic shock electrolytes get vanished through the gills. This weakening the fish’s capability of breathing, to take in oxygen and release carbon dioxide. Aquarium salt contains helpful electrolytes that assistance the electrolytes vanished during these times of stress and when fish are diseased, resulting in enhanced gill working. In place of this solicitation, increase one tablespoon of salt for every 5 gallons of water or per manufacturer commendations.

Hatching brine shrimp egg

Brine shrimp eggs are an outstanding food basis for numerous fish; then again require brackish water to survive. By accumulating freshwater aquarium salt to RO water, you can increase the salinity level of the water to accomplish brackish conditions. Add eight tablespoonful’s for every gallon of water until you attain a specific gravity of 1.005 and 1.015 SG. Remember to flap brine shrimp outside of the aquarium in a separate vessel as brine shrimp eggs can kill small fish that are incapable to digest them.

White spot and velvet

White spot and velvet is a drug intended for the treatment of ornamental fish which have spots diseases and velvets diseases. An aquarium salt must be used when you encounter small spots, granular lesions or fluffy layers of pale grey in the fish body. These symptoms appear on the fins, gills and may extend to the whole body. Fish may try to remove it by rubbing it against the tank. It contains the concentrated bacterial solution which biologically filters and eliminates aquarium waste. The skin of the sick fish converts dusty due to the addition of mucus that their immune system generates as a protection mechanism.

Water chemistry management

Knowledge about water chemistry management is often skipped by maximum aquarium owners but knowing just the fundamentals of water chemistry, you can significantly progress your success in nurturing healthy fish. The water quality is by far the single greatest important factor in the health of your fish, and the more you know, the better job you will do. Many aquarium owners do not understand the basic internal chemistry of their fish’s water, nor do they understand how to appropriately or securely adjust it.

Until you learn the basics chemistry of water and some common water maintenance techniques, it will be difficult to maintain your water quality i.e. keep a healthy and safe environment for the fish in your aquarium.

How to use an aquarium salt?

Performing a Dip

Before handling parasites, a dip is the technique of choice.

You need to add four tablespoons of aquarium salt in a clean bucket, and then gradually add One-Gallons of water from the aquarium, twirling it to dissolve the salt.

Once the salt is totally dissolved, put the fish in the bucket for ten to thirty minutes. Witness the fish carefully, and if there some signs of distress are observed, return the fish to the old aquarium instantly. A salt dip can head off potentially horrible infections, worsening slime coats, painful wounds, and a bulk of extra difficulties. But because salt doesn’t evaporate, you should remove the aquarium salt treatment with a chain of water changes after you’ve killed the parasites.

Performing a Bath

This method is the process of preventing the tank from the nitrite poisoning and reduction of the stress to the fish. It is very important to perform this method to keep the tank safer and cleaner. On behalf of stress treatment, measure out one teaspoon of salt for every gallon of water in the tank. Using a small bowl, melt the salt in a slight quantity of water taken from the tank. When it is completely dissolved, gradually add the solution to the to the tank. For treatment and prevention of nitrite poisoning, measure out four teaspoons of salt for each gallon of water in the tank. When using bath treatments, weekly water alterations of 28% must begin one week after preliminary treatment. We should not add additional salt once bath treatments have started.

Type and Quantity of Salt

Common aquarium salt is appropriate but it must be non-iodized and comprise no condiments. Rock or Kosher salt are outstanding choices, as they are conventional sodium chloride with nothing other additional. The amount will rest on just how and what it is used. A dip is a short exposure that is suitable for the extermination of pests. On behalf of dips, a 3% solution is generally used for up to a half hour. Baths are fundamentally giving the entire tank, and are beneficial for the treatment of stress, nitrite poisoning, as well as certain parasites. Salt concentrations for a bath are lesser, 1% or less, and are used for up to three weeks.

How to Use Aquarium Salt in a Salt Dip to Treat Infections?

This infection treating process is easy but if not done as in a proper way it can create different problems. By uncovering your fish to salt temporarily, you can rapidly eradicate parasites. And all you need is a bucket or tank with a working air stone make sure to attach it to the appropriate air pump, some aquarium water, and some salt.

The steps to perform this take are really easy. Here are the steps:-

Fill a bucket with aquarium water 

Only appropriate water should be put on the bucket. Make assured that it has the same temperature and pH as your tank water. If it changes then the fish will be in shock and may die. The bucket also should be clean so that there is no contamination of water.

Mix the salt solution 

Drizzle in 25 teaspoons of non-iodized salt for every 4 liters of water. Mix the solution until the salt is melted. When the solution is mixed well then only goes for the next phase.

Lightly scoop fish into the aquarium salt treatment

Wait five minutes, observing how your fish respond to the water. If your fish act a bit strange, that’s normal. But if they move over or rest to the corner and can’t right themselves, return them to the isolation tank and you might have to use the former salt treatment method instead. If all is fine and your fish remain to swim upright, keep up treatment for 60 minutes more or up to a total of 2.2 hours.

Move your fish to a quarantine tank

This tank must have the same temperature and pH levels as the aquarium salt treatment. Preferably, you’ll want to use a fully-cycled aquarium. All the fish should be gently put into aquarium using protective gloves.

Treat the main aquarium to get free of any lasting parasites

You can use salt or a medication for this. Once you’re sure that you’ve killed off all parasites (this will depend on the parasite life cycle), you can re-introduce your fish to their now parasite-free atmosphere.

When not to use an aquarium salt?

Although the benefits of aquarium salt are many, there is some drawback of aquarium salt hobbyist need to consider. Which I am going to cover in this portion of the article. There are many situations when we cannot use aquarium salt in an aquarium. Salt does not fade, it can only be removed by water changes and plants will not live higher absorptions. The cause is similar to what we can observe with fish that cannot live higher salt absorptions the reason is osmosis.

Freshwater naturally movements from an environment with a little salt absorption to one with a higher salt concentration in water. As a result, the variety of plants and animals decrease because they cannot keep the water. And the salt content of their bodies at the correct concentrations for them to survive in the environment. So, when there are plants and scaleless fish in the aquarium then aquarium salt cannot be used. Many people think salt is not harmful to the fish but it isn’t because it comes in many forms like Iodized table salt. If an iodized table is added to an aquarium which has been known to source ammonia levels to rise and then nitrites. It could harshly trouble an established of aquarium’s biological filtration bed.

Planted Aquarium

Planted aquariums are an aquarium having diverse kinds of plants. Plants remove to remove unneeded elements from water which helps to growth water quality between water variations in an aquarium. There are many plants that cannot live in salted water so we should select appropriate plants for our planted aquarium. The type of salt that we are putting into the planted aquarium can also effect on the life of the plants. Different salts have different effects on different plants. Planted aquarium need a special care on ph level and level of salt than the regular aquarium.

Scaleless Fish

Scaleless fish are allergic to aquarium salt, they don’t do well with aquarium salt so it should only be used for medicinal purposes. Extensive use of salt in freshwater tanks has been shown to cause kidney failure in fish so it is not recommended to put salt in aquarium water. Scale fish are very much sensitive to different types of salts. A minimum level of salt can be adjusted by these fish but an extensive amount of salt is very much dangerous. If possible these scales less fish should be given special care more than other fish in the aquarium.

Caution Using Aquarium Salt

While using aquarium salt regularly we can face a different problem if we don’t do it properly and inappropriate time. Using salt as a preventative can make parasites resistant to salt treatments. So if fish get sick, you may have to stick to medications instead. By adding salt all of the time, your fish are constantly producing extra slime. This can be as uncomfortable as wearing an extra jacket during the winter season, even if you’re guarding against cold.

Salt also acts as an irritant that’s how it thickens the slime coat. Salt and aquatic plants don’t mix. And some plants simply don’t tolerate salt well. Even so, most plants should do fine with a little bit of aquarium salt. A regular dosage can reverse the effects of zeolite filter media that removes ammonia. Only the right amount of salt should be used according to the aquarium size and water used in that aquarium.


Freshwater fish doesn’t require additional salt or mineral in order to live happily and healthier as long as you are keeping regularly water change and good hygiene. The adequate availability of good bacteria also helps to fish live healthier.


The accurate level of salt can support your fish in their osmotic regulation, decrease stress level and make their lives easier. Fish will be able to heal much faster if they get the proper amount of salt in water.


Salt is a very good mineral which can cure some parasitic infections and fungal growth. But, it also used as a tonic in those situations and only bath outside the aquarium.


In conclusion, aquarium salt is very much important for the proper living of fish with a longer lifespan and healthier life. Aquarium hosts a big number of aquatic species that live in a variety of water conditions: saltwater, freshwater, and brackish water. Since several species, as well as important microbes, cannot tolerate radical or changing changes to their environment it is important for owners to maintain the ecosystem of the aquarium because. Lower stress by assisting gill function.

Fish kidneys are designed to defecate the water absorbed through the fish’s skin and gills. This is a big job and a constant one necessary for your fish’s survival. By adding aquarium salt to the water, the fish’s kidneys do fewer works, because the quantity of water engrossed into the blood by way of gills is reduced.  Plants and algae have a vital role in maintaining an appropriate environment for the aquatic species. And last, disease prevention and cure are done with the help of aquarium salt. This is mostly not centered on enhancing the slime coat or regulatory osmotic control. But, against the stress protecting additives and water conditioners with the help of aquarium salt.