Best Reef Salt

12 Best Reef Salt – Complete Guide to Choosing the Best Mix (2021)

Best reef salt

Best reef salt introduces essential compounds that corals need to grow and be strong and resilient. Several salt types are sold for use in reef tanks, so choosing the best one for your tank is important.

With many options available, it is common for tank owners to get confused, especially since they all claim to be the best at what they do.

To help you make up your mind, we’ve reviewed some of the best types of fine coral salts and included them in this guide to get you started.

Read More Related Post: Jack Dempsey Fish: The Complete Care Guide 2021

What is Best Reef Salt?

Reef salt is the magic ingredient in your saltwater aquarium.

This is what makes the water in your aquarium salty and helps you reproduce the reef’s natural waters.

Reef salt is made up of all the salts and trace elements found in seawater such as: chloride, sodium, magnesium and calcium.

These salts will form the salinity of your aquarium (ocean salinity is typically 35 PPT). Salinity is measured in parts per thousand (PPT) which describes the concentrations of dissolved salts.

This means that, on average, each kilogram of water contains approximately 35 grams of dissolved salts. with an average density of 1,025 kg / L on the surface. Sodium chloride is the most abundant sea salt with a small percentage of magnesium and potassium.

Knowing the salinity concentrations in your water is very important, especially during water changes. You don’t want to change the levels too much and poison your fish.

As the water in your aquarium evaporates, the salinity increases. This is important to know when replenishing the water, as you can only add fresh water because it will mix with the higher salinity waters in the tank and return the salinity levels to normal.

You will find that different mixtures of different things go out, from corals to invertebrates to fish. These mixtures have different salts and concentrations of trace elements vital to keep marine life healthy.

Corals and invertebrates prefer higher concentrations of carbonate and calcium and buffers that help build their skeletons and shells.

Having a nicely colored tank is one of the best things to look at and show off to your friends, which is why these mixes often contain micro and macro nutrients to enhance the colors of your fish.

Best Reef Salt Reviews

  1. Instant Sea Salt For Marine Aquariums

It does not matter what size aquarium you have. Instant Ocean Sea Salt offers one of the smartest and easiest ways to bring the ocean into your home. As such, scientifically formulated sea salt is a carefully created product.

Instant Ocean is also one of the most preferred sea salts in the world. As such, it has been used by hobbyists, scientific research facilities, and public aquariums. This is because Instant Ocean Sea Salt has set a standard for quality, quantity and consistency.

You will find that the product dissolves quickly. So you don’t have to wait long before adding your marine life. However, you may want to aerate your water to get the correct balance between carbon dioxide and oxygen.

Various sizes can be found, ranging from 10 to 200 gallons. Buy the one that best matches the size of your aquarium for best results.

Of course, this sea salt has all the essentials that are needed for a healthy aquarium. Accordingly, phosphate and nitrate are free.

All you have to do is mix this product with plain water or purified water. It is also possible to prepare smaller quantities from the larger boxes. Simply use about ½ cup of the product with one gallon of water.

  1. Fast Sea Saline Chemicals For Aquarium Salts

If you are looking for an easy to use reef salt, Instant Ocean Reef Crystals Reef Salt is a great choice. It has an enriched formulation for optimal effectiveness.

You will find that this product is specifically formulated for use in reef aquariums. As such, Reef Crystals contain the most important ocean reef elements. However, it is in higher concentrations than those found in seawater.

Mainly this product works well because it has extra calcium included. You can make sure that the coralline algae and stony corals grow well.

Of course, trace elements are also included. This provides more vital nutrients and vitamins to support faster growth and survival of marine life. These include anemones, corals, and other invertebrates.

While it is recommended to use purified water, you can also use tap water. This product can neutralize any trace of heavy metals. Mainly, it makes it safer for your marine fauna.

As such, you will find a variety of sizes available. These range from 10 gallons to 200 gallons. People with small aquariums may want to purchase a larger size to always have on hand.

However, you can also buy the size that corresponds to the size of your tank. If this is the case, it might be best to consider automatic delivery so you never forget to reorder.

  1. Brightwell Aquatics ABANMAR150 Neomarine Marine Salt

Do you want a product that has been thoroughly tested and researched? The Brightwell Aquatics ABANMAR150 Neomarine Marine Salt is ideal for you. It has been studied for many years to ensure that it conforms to marine biology and chemistry.

This sea salt is formulated to replicate the proportions of seawater for each significant element. However, it also reproduces all minor traces and details, too. In this way, the water is ideal for its marine fauna.

In fact, the aquarium inhabitants are not likely to notice any difference between the aquarium and traditional seawater. They will continue to thrive and grow without worry.

While many salts use evaporite from seawater, this company does not. As such, you can be sure that the elements are provided by the actual minerals and vitamins. They are not man-made.

You will find that the product is manufactured in the Brightwell Aquatics production facilities. You never outsource to anyone else. Therefore, it maintains the strictest standards to provide higher quality items.

Each batch is sampled to ensure quality. You will notice that each particle is similar in size to the next. This is to make sure the product mixes easily with water to create seawater that is safe for your marine life.

  1. Complete Sea Salt Fritz Aquatics 80280 Reef Pro Mix

Whether you have fish or reefs, you will find Fritz Aquatics 80280 Reef Pro Mix Complete Sea Salt to be ideal. It is manufactured with raw materials of the highest quality. You will find that this product does not contain ammonia, phosphate or nitrate.

As such, the product was formulated by marine scientists and researchers. That way, you can rest easy knowing that it contains the necessary minor and major elements found in natural seawater. These are used by reefs and marine animals.

This sea salt has the correct pH and buffering capacity. This means that essential trace elements and minerals have been added using the proper proportions. You can be sure that the mixture is mixed correctly for the longevity and health of your marine fauna.

Along with that, the product quickly reaches the correct pH levels. This means you can mix it up and add your marine life very soon after. Mainly, it saves you time and avoids the risk of death to your reefs / animals.

While most people focus on products designed for their needs, it’s also important to consider who else might use it. Fritz’s sea salt is used by many professionals. These include public aquariums, research institutions, zoos, and adventure parks.

  1. Tropic Marin ATM10581 Pro Reef-Bucket For Aquariums

Using the correct sea salt for your marine aquarium is essential. As such, the Tropic Marin ATM10581 Pro Reef-Bucket is an excellent product. This pharmaceutical grade sea salt is specially designed for modern reef needs.

You will find that this sea salt meets the unique needs of reef aquariums. Provides optimized concentrations of magnesium and calcium. These two elements help promote coral growth over time.

Of course, it is easy to achieve lower buffering and correct pH values. These things help stabilize the natural values ​​of the water. Mainly, it focuses on carbonate hardness, as well as calcium reactors.

Most people don’t realize that you can’t have a stable, natural condition for your delicate marine life without it. You need to balance all the influencing factors, and this product can help you do that.

Tropic Marin Pro-Reef Sea Salt is an ideal base for growing and caring for your marine life. This includes corals, fish, and other invertebrates that can be seen in modern reef aquariums.

It is possible to use this product to start your new aquarium and create balance for the current one. Along with that, you can use this sitting salt for regular water changes in your seawater aquarium.

  1. Red Sea Fish Pharm ARE11230 Coral Pro Marine Salt

Anyone with a saltwater marine aquarium needs to have the right salt for it. Coral Pro Fish Pharm ARE11230 Coral Pro Sea Salt is an ideal mix for all reef aquariums. It is designed to encourage accelerated and healthy growth to enhance the vitality of your corals.

A coral must continually grow its skeleton. It does so by absorbing all major, trace, and minor elements from the surrounding water. So if you want it to prosper, you need to provide it with these things.

This product has been thoroughly tested. During the research phase, it was shown that the ratio between magnesium, carbonates and calcium is essential for corals. Without it, the corals will not efficiently take the elements of the water to grow.

It is important to have sea salt that can provide the foundation for accelerated growth. Marine Red Fish Pharm Coral Pro Sea Salt is designed for all LPS and SPS corals. As such, it is highly recommended to grow your SPS coral fragments.

You need this sea salt because the aquarium only has a limited amount of resources. These are quickly depleted by its inhabitants. Therefore, if you want to maintain coral growth, you must maintain higher than normal levels of the basic elements of water.

  1. Omega Sea Premium Reef Salt

Omega Sea Premium Best Reef Salt has been scientifically researched and formulated. Therefore, you can address all the needs of your marine life.

This includes corals, invertebrates, and fish. It is a revolutionary mixture made with the best raw materials and little water.

Mainly, it is designed to stay dry before use and dissolve faster in water. With that, it can also produce about 20 percent more seawater than other salt products. You will also find that this product does not contain phosphates, nitrates, and other chemicals.

This premium best reef salt from Omega Sea includes all the major elements. It also has all 70 trace elements. Also, these are in the exact proportions found in tropical sea water.

It contains a unique buffer system to ensure that the pH level is correct. Of course, the product has been adapted to ensure that natural water can stabilize and become seawater.

You will find that this reef salt contains higher levels of magnesium and calcium. The product also contains improved alkalinity and does not add additional bromide. This ensures you have an ideal environment for all reef dwellers.

Of course, it is important that the marine wildlife in your aquarium can grow and develop as needed. The product comes in a 60 gallon shatter proof and resealable bag.

8.instant ocean best reef salt 

Best reef crystals for aquariums

This blend is specifically formulated for reef aquariums, containing essential elements from ocean reefs in an even higher concentration than in natural ocean waters.


  • Does not clump when kept in a closed container.
  • Great value for the price.
  • Mixes easily with water.
  • Leaves no residue.


  • The smaller box version needs to be resealed each time you use it.
  • You need more salt than the recommended ratio to create the correct parameters.

9.KENT Marine Best Reef Salt Mix

Best Price Reef Salt Mix

This mix has been designed to mimic ocean water and will provide all the minerals necessary for your reef setup.


  • It has a good price.
  • This brand is well known and widely available.
  • Leaves no residue.
  • Very fine and dissolves quickly.
  • Enriched with calcium, strontium, iodine, minerals and vitamins.


  • Calcium levels are a bit high.
  • It is not very well packaged in box form
  • No labeling on the bags inside the box.

10. Tropic Marin Pro Reef Sea Salt

Pharmaceutical Grade Reef Salt

This large 200 gallon bucket is a pharmaceutical grade sea salt designed for modern reef aquariums.


  • This is great if you have a wide variety of corals in your tank.
  • It dissolves completely and leaves no residue.
  • High quality reef salt mix.
  • Available in different sizes to fit your tank.


  • It is expensive.
  • No labels or marks on the bag.

11. Red Sea Coral Pro Salt

Ideal sea salt for mixed reefs

This salt mixture is designed to stimulate and accelerate the growth of corals in your reef aquariums.


  • The bag option is cheaper than the bucket option.
  • 72% salt naturally extracted from the Red Sea.
  • This is a high quality salt.
  • It dissolves quickly.


  • You may want to keep it in a closed container.
  • It is quite expensive.

12.Specially Formulated Reef Salt: Brightwell Aquatics Neomarine Mix

High-quality mixed reef salt

A precision salt mix for reef aquariums, this special formula has been extensively researched and tested to create the perfect mix.


  • High quality salt specifically formulated.
  • It is made in America.
  • Highest purity ingredients available.
  • Your fish won’t be able to tell the difference from real seawater.


  • You may need to measure salinity and hardness with each batch.
  • It is relatively expensive.
  • It comes in a box instead of a cube.

Does your aquarium need reef salt?

Reef salt is best added to tanks that have fish and animals found on a coral reef.

Once you’ve decided on the animals you want, you need to build the perfect environment for them, from the tank substrate to the decorations. But the most important element in saltwater aquariums is water.

Normally, the conditions of ocean waters are variable, with different temperatures and salinity.

Variations in temperature and salinity create different densities of water that change with different streams of water. The density of water can change so much between different currents that oceanographers use it to track water movements .

Due to the amount of life that surrounds ocean reefs, these environments are often nutrient-limited, meaning that the waters have very little nitrate and phosphorus. Therefore, it is important to understand if your saltwater tank needs specific reef salt.

It is very important to start from the beginning, with the water. Household water supplies are generally unsuitable for saltwater aquariums as nitrate and phosphate levels are very high.

Before adding water to your tank, you must purify it to remove any dangerous contamination and toxic compounds.

Reverse osmosis , deionization and ion exchange are some of the methods that are generally used.

It can also have a combination of reverse osmosis and deionization known as RODI units.

Once you’re done with the water, the salt will be a lot easier. Different brands often have slightly different chemical formulas that alter the amount of salts and trace elements present in the water.

Like most things about fishing, there is no right or wrong answer. You will need to do your research and find the best combination that suits your unique setup.

Reef salt vs sea salt

Reef salt, sea salt, crystals, there are many options to choose from. But what is the difference and what is best for your tank?

Each of these is a different combination of salts. To understand the differences correctly, you need to look at their chemical composition.

Reef salt has a higher concentration of calcium, iodide, and magnesium than sea salts.

They both have very low nitrate levels and if tested they should give a negative result.

They are all intended to mimic the natural condition of seawater, but reef salts have been designed for coral reef environments while sea salts have been designed for a more general marine environment.

Sometimes these salts are interchangeable, and you can use either of them as long as the salinity stays around 35 PPT.

Although salinity is not everything, reef salts will also help maintain correct alkalinity and pH with essential and non-essential components such as cadmium, silicate, nitrate, phosphate, beryllium and arsenic.

Calcium is a very important aspect for coral reefs – without this element, corals and shells cannot calcify and build their own skeletons and protection.

Therefore, the chemical composition of reef salts aims to replicate the natural condition of a reef system in an enclosed saltwater aquarium so that its inhabitants feel at home.

How to choose the best reef salt?

Choosing the best reef salt is one of the biggest dilemmas.

It all depends on the organisms you want in your tank.

Different brands have slightly different chemical compositions and it all comes down to how the fish reacts to the mix.

You can start with one type of mix and switch to another to find the best balance.

The main thing to consider when choosing a mixture is the content of phosphates and nitrates; both must be negative and insignificant.

Coral reef ecosystems are limited in nutrients due to the amount of life they support, so animals are used to low concentrations of nitrate. If these concentrations increase over a long period of time, it will be harmful to your fish.

Other things to consider is its composition: calcium, magnesium, and alkalinity are good starting points.

  • Calcium is one of the most important elements, as it is one of the basic components of reef organisms. The recommended concentration is 400 PPM.
  • Magnesium is one of the most abundant trace elements in seawater and balances the alkalinity of the water in your tank. 1250 PPM is the recommended concentration for closed salt water systems.
  • Alkalinity can greatly affect the pH so it is important to monitor it. Recommended levels are 8-11 dKh for saltwater aquariums.

Look for the general levels of the items listed above for a good start.

How Much Reef Salt Do You Need?

To understand how much reef salt you need, we have to talk a bit about salinity and what makes seawater so salty.

The oceans cover approximately 70% of the Earth’s surface containing 97% of the water present on Earth. The other 3% is contained in freshwater systems, glaciers and polar caps.

If the planet were to dry up, the salt contained in the oceans would cover us to a depth of 5 feet.

Therefore, when setting up a saltwater aquarium, salt is critical to a healthy and successful environment.

Salinity varies throughout the ocean depending on: depth, evaporation, and many other factors. Generally, this can range from 31 to 38 PPT. Salinity is usually around 35 g per liter of water. As discussed earlier, grams per liter is the same as saying PPT.

This means that in each liter of water I need 35g of salt. This equates to approximately 4.7 ounces of salt per gallon of water. However, this could change for certain brands, so be sure to read the label on your reef salt.

How is reef salt mixed?

The reef salt mix varies from product to product, so you must follow the directions with each product.

However, here is an overview with some helpful tips as well.

First of all, make sure the water you are using is correct. Your tap water is rich in nitrates and phosphates and also contains other invisible things that are harmful to the inhabitants of your tank. Choose the best way to purify the waters and then add the reef salt.

You should always mix the water before adding it to the tank, to allow the salts to dissolve easily. When mixing reef salts, always remember the rule of thumb of 35 g per liter of water or 4.7 ounces per gallon.

Test and check the salinity while adding the salt to make sure you get the correct concentration. You must add more water to lower the salinity. Or if you need to increase the salinity, add more salt.

You can use some simple math to be more precise.

First measure the salinity you already have.

For example, it could be 31 PPT per 100 liters of water. You still have 4 PPT to go to the final concentration of 35 PPT. Therefore, 4 grams (the same as PPT) * 100 L = 400 grams of salts.

On the other hand, if you have a salinity of 40 PPT in 100 liters of water you will have to add about 115 liters of water. This is calculated as (40 PPT / 35 PPT) * 100 L = 114.9 L.

Just keep in mind that when you add more salt to your aquarium you are also altering the alkalinity, calcium, magnesium, and other components.

To accurately measure salinity, you can use a refractometer or a hydrometer.

Reef Salt Vs Marine Salt

When these two are compared, it is observed that reef salt has higher levels of calcium, iodide and magnesium than sea salt.

There are still some similarities, such as both types of salt will be negative for nitrates, as nitrate levels are negligible.

What Is The Best Reef Salt To Use?

If you are new to buying the best reef salt for your aquarium then you should go for instant ocean reef crystals reef salt.

This salt comes from a superior brand that makes the best rated reef salt for use in an aquarium. In addition, salt has more important compounds such as calcium that promote the growth of large and small corals. You will always get the best coralline algae development when using this product.

The manufacturer also included trace elements that will ensure the vigorous growth of the corals. With the metal detoxifiers also used in this salt, you can be sure that the heavy metals found in your domestic water supply will be easily removed.

What Is The Best Reef Salt Mix?

The question of which is the best reef salt mix is ​​common in many forums.

Many people are happy to give their opinion on what makes the reef salt mix, but the important thing is that you understand the basic components of the best mix.

The first thing to consider when choosing a reef salt mix will be the differences between the different brands. All brands will have a label showing what to expect from their sea salt.

The composition of the salt will also be shown on the label. The composition can vary widely from brand to brand, but some also have common ingredients. The varying composition of the salt mixture will create the differences between one brand and another.

If you want to end up with the perfect match, there are a few things to keep in mind when making your decision. Common parameters to compare between brands include the amount of calcium, magnesium, and alkalinity.

The calcium compound is the most important component in reef salt. Corals and other types of invertebrates need it to build their skeletons. The recommended concentration for good results is 400 ppm. PPM stands for part per million.

Magnesium is another important mineral to have in reef water. It is often considered to be the most abundant trace mineral found in salt water. Magnesium will work together with calcium to help balance the alkalinity of the aquarium water. The recommended concentration is 1250 ppm.

Alkalinity is going to affect the pH level of the reef tank. With the addition of the salt, you can expect the water to become more alkaline. You need to take alkalinity into account to make sure you understand the level of bicarbonate in your water. You may have to adjust the alkalinity where possible. The alkalinity of the saltwater aquarium is recommended to be 8-11 dkh.

Now back to the question. From the details above, you want to have calcium in the range of 400 ppm, magnesium 1250 to 1400 ppm, and alkalinity maintained between 8 and 11 for the salt mix.

How Much Reef Salt Per Liter?

This will vary from brand to brand, but in most cases, it will be 35g per liter of RO water. You can always check the label for the manufacturer’s recommendations.

How To Mix Reef Salt?

The first thing you will need to do is get the best sea salt for your aquarium. You can easily buy it from a nearby store that sells aquarium-related products. Most of the time, you will get the synthetic reef salt dry so that you can mix it with water.

The next thing is to gather all the supplies needed for the job. You will need water to mix, and the best option is to use deionized water for this process. You can only use tap water if the water quality is excellent.

You can buy deionized water at a store near you. Additional supplies for the process include a clean bucket, submersible heater, stirring tool, hydrometer, and floating thermometer.

Fill the container with deionized water and add salt in the correct amount according to the manufacturer’s directions. Each manufacturer offers information on how much water should be used to dissolve a certain amount of salt. Let the mixed saltwater settle overnight before you can add it to your aquarium.


Keeping the reef aquarium in good condition goes a long way when it comes to making sure you have the best coral in your tank. Now that you know more about the best reef aquarium salt, go ahead and choose one for your aquarium.

Make sure you understand the composition of each type of salt before buying. Having the right type of composition goes a long way in choosing the best salt for your marine aquarium.

Within a few weeks of using the proper reef salt, you should be able to see some differences. The differences mean that their corals look even more alive and better.


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