The 8 Best Nitrate Remover for Freshwater in 2023 (Reviews & Buying Guide)

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Last month, my cousin called me with a sad voice. She was at a great loss because her pet fish died suddenly. While finding out the reason, I paid her a visit and found the dirt water in the tank. And I was sure that the water contains too much nitrate, phosphate, and ammonia that are the reason for the sudden death of her cute pets. That, I truly learned the necessity of using the best nitrate remover for freshwater.

At the same time, I feel the essence of sharing this with you. So, I prepared myself to share everything about the best nitrate remover for freshwater. Here, I have chosen the 8 best products and I’ll try to enclose every single detail of them so that you can understand exactly which one you need. So, let’s not make late and learn something very important.


Reviews of 8 Best Nitrate Remover for Freshwater

Here, I am starting with a review of 8 products. Try to learn the details well. Otherwise, you may end up buying the wrong product.


1. Seachem Prime Fresh and Saltwater Conditioner

Seachem Prime Fresh and Saltwater Conditioner
  • POWERFUL TREATMENT: Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish...
  • REMOVER: Seachem Prime immediately and permanently removes chlorine and chloramine, successfully allowing the bio filter...

Seachem Laboratories brings you Prime Fresh and Saltwater Condition to keep your aquatic tank clean and free from toxicity. If you frequently buy products for your aquarium, the name Seachem isn’t new to you. They are providing the best solution to the dirt problem of your aquarium water with this product.


The liquid solution of this best nitrate remover for freshwater contains a binder that has nitrate, ammonia, and other nontoxic substances. These elements are very important for maintaining healthy surroundings in the water.

Product Details

It has both a bottle and a pouch packaging system. The bottle contains 500 ml of this water conditioner. And the pouch is 6.6 inches long, 2.5 inches wide, and 2.3 inches in height. It’ll weigh 8.5 ounces and this little amount is able to clean the tank water several times.

Safety Details

The cleaner can be used in both saltwater and freshwater. No acidic elements are used in this conditioner so it won’t make overactivated protein skimmers and affect the pH.

Using Directions

For 200 liters of water which is approximately 50 US gallons, you need to use 5 ml of this water cleaner. If you want better results, you should use it with new water.

Effective Result

This water purifier cleans chloramine, chlorine and detoxifies heavy metals and ammonia. It preserves a slime coat in a natural way and increases production.


  • A 100 ml bottle can clean up to 1000 US gallons of water.
  • It doesn’t affect the protein skimmers so reefs can be also restored.
  • Detoxifies harmful elements in 48 hours.
  • A complete friendly environment is confirmed for fish tanks.


  • It’s not recommended to use anywhere else without the aquarium.

Our Thought on Seachem Prime Fresh and Saltwater Conditioner

This aqua freshening liquid is definitely recommendable as it has a lot of beneficial features. It’ll maintain a certain concentration level that is needed in a tank.

Other advantages include very fast removal of harmful substances and replacing them with essential ones. This best nitrate remover for freshwater has experienced and scientifically proven chemicals that are safe. So don’t wait to give it a try.


2. Microbe-Lift NiteOutII for Home Aquariums

Microbe-Lift NiteOutII for Home Aquariums
  • Contains one (1) API NITRA-ZORB SIZE 6 Aquarium Canister Filter Filtration Pouch 1-Count Bag
  • Removes toxins that can be harmful to fish

If you want to try the best nitrate remover to protect your little aquatic pets, then I will suggest Microbe-Lift NiteOutII for Home Aquariums first. You must be familiar with Microbe-Life well as it is one of the best known Aquarium kit manufacturers. There is a bucket full of special benefits of using this water conditioner. You can check the details from the below description.


It is a completely natural nitrate remover that ensures no possibility to harm the aquatic pets. No harmful chemicals or substances are used to form this secure cleaning agent. And almost all the ingredients are taken from natural elements.

Product Details

This supportive water conditioner has come in two different pack sizes. You can get it with either 8 ounces or 16 ounces of the amount. And the 8-ounce pack has come with a 6.3 x 2 x 1.3 inches dimension.


You can use this product on both fresh and saltwater. The aquatic inhabitants both of animals and plants will stay secure in water mixed with this water conditioner. So, about the safety issue, you don’t have to think at all.

Using Directions

While using this water conditioner, you should give the bottle a nice shake so that the internal ingredients get mixed properly. You have to use it when adding new water or changing it.

Instant Results

It needs just a few seconds to mix it up with the water whether it is fresh or salty. It produces necessary nitrifying bacteria that help in the biological nitrification process and make the water clean very fast.


  • It removers 100% ammonia and nitrate from the aquarium water.
  • It vanishes all kinds of organic waste and harmful bacteria.
  • Needs a very little dose, so you can use it for a long time.
  • It is 100% chemical-free.


  • You should keep the filter switch off while adding this water conditioner.

Our Thought on Microbe-Lift NiteOutII for Home Aquariums

So, you have seen how useful this nitrate remover is from Microbe-Lib. It is good for both fresh and saltwater. Again, it ensures a suitable watery environment for both aquatic animals and places.

If you think about the price, I can give you the good news that the best nitrate remover for freshwater is not too pricey. And once you buy it, your Aquarium environment will be net and fresh for long. So, you can definitely try this best nitrate remover.


3. API ACCU-CLEAR Freshwater Aquarium Water Clarifier

API ACCU-CLEAR Fresh Water Aquarium Water Clarifier
  • Contains one (1) API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
  • Clears cloudy aquarium water

If you are looking for cleaning support for your aquarium, API ACCU-CLEAR Freshwater Aquarium Water Clarifier is a product you should not miss. API has maintained its quality for more than 50 years. They won’t disappoint you as this water conditioner is made and improved from day by day research.


If you are concerned about the ingredients, let me tell you that it is made from a bunch of natural substances. There’s no such element that causes any harm to the aquatic ecosystem.

Product Details

The water clarifier has two different pack sizes from which you can pick according to your need. The bottle is 8 ounces and you can also go with the pack which is 2 inches in length and width with 7.5 inches in height.


This best nitrate remover for freshwater is specially designed for use in freshwater. After mixing, it ensures a clean and clear environment for the aquatic creatures in the aquarium. It doesn’t contain any toxic chemicals, so you can be tension free.

Using Directions

You should use this purifier once a week for effective results. The required amount is 1ml for each 10 U.S. gallons which are about 38 liters of water. But it can be used whenever the water becomes cloudy.


When you use this conditioner, it not only cleans the water but also combines small particles into a large form so that the aquarium filter can remove those easily. It takes only several hours to make the water crystal clear.


  • It is helpful for increasing the efficiency of the aquarium filter.
  • Works quickly to remove floating particles and gravel.
  • Prevents diseases and keeps the water animals vibrant and fresh.
  • Effective for cleaning green and cloudy water.


  • Overdosing the product can be harmful to the aquarium environment.

Our Thought on API ACCU-CLEAR Freshwater Aquarium Water Clarifier

After considering the above-described features, it’s sure that you are convinced enough about this product. You can rely on this water clarifying solution without any doubt.

It’ll ensure a neat and beautiful aquarium and eliminate dirt from there. So your fish and other aquatic species can live in a healthy life where they’ll feel similar to the natural environment.


4. TankFirst Complete Aquarium Water Conditioner

TankFirst Complete Aquarium Water Conditioner
  • NO AWFUL SMELL! The problem with some other aquarium water conditioners is that they smell horrible. Hobbyists pour...
  • CUTTING EDGE FORMULA! Makes tap water INSTANTLY SAFE by removing chlorine, and chloramines; it also detoxifies ammonia....

Here, we will talk about a high-quality water conditioner from TankFirst. It is widely known as the best nitrate remover for freshwater completely made in the USA and does not contain any harmful materials. So, take a look at TankFirst Complete Aquarium Water Conditioner for maintaining a good ecosystem in your fish tank.


It is made of natural ingredients which are completely safe for the fishes and atmosphere. This special blend makes the water usable for the fish almost immediately. It is also free of sulfur compounds.

Product Details

This conditioner comes in 3 different pack sizes, we are reviewing the 500ml one which will last for a long time. A 500ml package is around 7.9 inches in length, 2.6 inches in width. This is capable of treating up to 1000 gallons of water


Safety is the first priority given to this product. It is for living species and plants, so the liquid is made of natural materials. This is free of any chemical smell and removes toxins and harmful metals from the water.

Direction of Use

You will have to use TankFirst before shifting your fish to the water. Shake the bottle before using and provide 5ml or 100drops per 10 gallons of water.


It is highly effective against all kinds of water toxins, harmful waste chemicals; such as chlorine and chloramine. It works quickly and makes the water suitable for water spices in no time.


  • It is highly effective and lasts for a long time.
  • Free of sulfur compounds and chemical smells.
  • It is very easy to use.
  • Keeps the water ecosystem for the fish and plants safe.
  • Suits all kinds of water applications.


  • We didn’t find any faults with the product.

Our Thoughts on TankFirst Complete Aquarium Water Conditioner

For its superior support and multi-purpose usage, we will suggest it for any kind of user. This best nitrate remover for freshwater is capable of fulfilling any type of fish enthusiasts. We think it will be a great choice for anyone for its versatility and affordability.


5. Seachem Purigen Organic Filtration Resin

Seachem Purigen Organic Filtration Resin
  • FILTRATION: Purigen ranges in color from almost white (cream) to light yellow. Seachem Purigen is not a mixture of ion...
  • SELECTIVITY: Seachem Purigen is an organic filtration resin that works hard to remove nitrogenous compounds and waste...

Seachem Purigen Organic Filtration Resin is one of the most versatile water conditioners and cleaner for any sort of fish tank. It comes in two different sizes and we will review the 100ml package. It uses advanced filtration technology to keep the water safe and clear for water spices.

Product Aspects

It comes in 100 ml and 500ml sizes. The 100ml package is approximately 4.7 inches in length, and the width is around 3 inches. The weight of the package is around 1.41 ounces. A 100 ml package is capable of treating up to 100 gallons of water.


This blend is made of environment-friendly materials. It does not have any harmful effects on water animals and plants. The main ingredients are a mix of unique macro-porous synthetic polymers.


You will have to take some safety precautions. Sometimes it can make bleach and chemical smells. If any foul smells generate, you will have to stop using and change the water. It is completely safe but it is suggested to test before using it on a regular basis.

Direction of Use

Purigen is a compound of organic materials and works for the filtration of water. You will have to use it according to the volume of water. For a 10-gallon size tank, you will require 2tps or 10ml of soaked beads.


It is known as the best nitrate remover for freshwater for its highly effective result to decrease the nitrogenous waste, pollutants generated by fish, corals, water species, and plants. The tank water will be cleared from any kind of synthetic and biological wastes in the quickest time frame.


  • Offers unmatched performance in cleaning organic waste material.
  • Suitable for all kinds of water applications.
  • Does not put any negative impact on the fish habitat ecosystem.
  • You can use it at any time in a fish tank without any age restrictions.
  • It can be reused with its regeneration capabilities.


  • Sometimes the regenerated beads might produce odors.

Our Thoughts on Seachem Purigen Organic Filtration Resin

It is known for its long-lasting usability. We will highly suggest this water filtration support and conditioner for anyone. It is easy to use with zero maintenance issues. Take a look at this product for a worry-free fish nurturing experience.


6. KloudAway Freshwater Aquarium Water Clarifier 

KloudAway Freshwater Aquarium Water Clarifier
  • FAST- ACTING - KloudAway quickly clears cloudy or hazy aquarium water by CLUMPING FLOATING PARTICLES together making...
  • CUTTING EDGE FORMULA - Our advanced fish tank water clarifier is targeting unsightly particles in water such as uneaten...

Let’s meet another protective water clarifier to ensure a safe environment for your aquatic pets. This time, I’ll be talking about KloudAway Freshwater Aquarium Water Clarifier. If you already have an aquarium then this one must be familiar to you. The product will keep your worries away with its tons of beneficial action. So before buying this best, please check the details right below.


The product is made with all the natural elements that solidify the unseen particles. So, it gets easier to identify hazardous chemicals and filter them easily. Moreover, the ingredients here will help you to keep your fish safe from ammonia and nitrate.

Product Details

You can get this product with 1.21 pounds of the bottle. And the bottle of this aquarium water clarifier measures 8.27 × 2.8 × 2.52 inches.


The conditioner drains hazy water and removes the hazardous particles with a mechanical filter. Also, it won’t harm the beneficial bacteria or the PH level.

For Variants of Aquatic Inhabitants

The water conditioner is adjustable for all kinds of freshwater creatures. It makes a safe environment for all kinds of fish, turtles, shrimp, and plants. The product is not permitted to use for saltwater inhabitants.

Using Directions

To get a better result, shake your water conditioner bottle while using it in the aquarium. For a 10 gallons aquarium, you need to mix 5ml KloudAway. Aquatic experts suggest using this product twice in a 5 day period.


  • The product removes all kinds of pollutants and keeps the water crystal clear.
  • KloudAway won’t affect the biological filtration of the aquarium.
  • It can be used for both freshwater creatures and plants.
  • KloudAway gathers all the unseen particles and removes them with a mechanical filter.


  • This Aquarium clarified doesn’t work on Green Water.

Out Thought on KloudAway Freshwater Aquarium Water Clarifier

Now, you have seen how effective this product works to keep your aquatic environment clean and pollution-free. It detoxifies the whole water but doesn’t do any harm to beneficial bacteria.

Moreover, you won’t find any other water conditioner that enables a bunch of usefulness. You will be glad to know that the product is pocket friendly. So, I can assure you that you won’t regret using it for your aquatic inhabitants.


7. Seachem Pristine Aquarium Treatment

Seachem Pristine Aquarium Treatment
  • Natural organic waste management
  • Fast acting

The next recommendation is Seachem Pristine Aquarium Treatment. I don’t think I have to introduce you with the name, Seachem Pristine anymore? You have already learned about another best nitrate remover for fresh water from the same aquarium kit manufacturer. Well, let’s see the reasons for recommending this product.


To improve the water quality of your aquarium tank, the manufacturer has made this nitrate remover with all-natural elements. It is free from all types of toxic chemicals and it is safe for both plants and animals in the water.

Product Aspects

You will get this product in different amounts. Basically, it comes with 100 ml to 1000 ml bottle size. And there 4 different sizes are available for this product. So, you can get it regarding your needs.


While thinking about its security, I can assure you that it’s the best part of this product. Both of your aquatic animals and plants will be safe with this nitrate remover. In fact, it works to ensure better security even from other sources of harmful substances.

Using Directions

Using this protective nitrate remover is safe and easy. You can just take just one cap of this water cleaning agent for 40 gallons of water. Every time you use it, make sure you are giving a good shake before opening the cap.


  • The ingredients of this product save aquatic life from ammonia and nitrate.
  • It is completely free of sulfur compounds and chemical smells.
  • It helps prevent diseases to water animals healthy and fresh.
  • It suits perfectly for all kinds of aquatic inhabitants and water types.


  • It’s not suggested to use anywhere else without the aquarium.

Our Thought on Seachem Pristine Aquarium Treatment

It is an aquarium water enhancer and then why should you use it outside the aquarium? However, just focus on its advantageous sides. You will get it just perfect for you Aquarium.

As it is available in different sizes, you can buy it with the exact amount of your need. Besides, it is quite budget-friendly and you can find it in any nearby pet shop or online market.


8. Seachem Stability Fish Tank Stabilizer

Seachem Stability Fish Tank Stabilizer
  • TANK STABILIZATION: Seachem Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine...
  • TREATMENT: Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic,...

Are you looking for any multitasking aquatic clarifier? Then why not try Seachem Stability Fish Tank Stabilizer? This is the last recommendation for today. Well, this product is equally safe for both aquatic plants and creatures. Besides, you won’t find any clarifier that includes a bucket full of advantages like this one. Let’s see how you can make your aquarium pollution-free using this product.


This product includes a synergistic blend of aerobic, anaerobic along facultative bacteria. These elements help to detoxify the water and keep the aquatic inhabitants safe.

Product Details

You will get this product with a 500 ml bottle size. You can use 5 ml for 40 liters of water. So, you must be understood that 1 bottle of this best nitrate remover for freshwater will last for years.


Because of non-sulfur mixing, the bacteria don’t produce toxic hydrogen sulfide. So, it makes the aquatic environment adjustable for the inhabitants of any type.

Increase Bacteria Growth

Few conditions are essential for the growth of bacteria like temperatures, pH, organic loads, etc. Seachem Stability works more effectively when other bacteria begin to die due to the high organic load.

Using Directions

Before mixing this product in your aquarium make sure to shake it properly and turn off the UV filter. If you have a 40L water Aquarium and if it is your first time using this product then drop 5 mL Seachem Stability. After that, continue to drop 5 mL in 80L water for a 7 day period.


  • Seachem Stability is adjustable for both freshwater and marine aquatic creatures.
  • The product prevents new tank syndrome so your fish won’t die due to the hazardous environment.
  • The elements here make aquatic life safe from ammonia and nitrate.
  • This clarifier ensures to not produce toxic hydrogen sulfide so there’s no problem if you use it excessively.


  • If the aquarium is not maintained properly, the bacteria here dies quickly as it doesn’t include any aforementioned bacteria.

Our thought on Seachem Stability Fish Tank Stabilizer

I think you have already understood the usefulness of this product. You can keep your aquatic creature safe along with the plants. Also, it can be used in both marine and freshwater.

Also, you will be happy to know that the product is not too pricey. If you want to keep your aquarium creature healthy and cure then do not forget to get this one. Still, don’t forget to find out the appropriate one for your aquarium type and pick the best one as well.


Buying Guide

Nitrates removers are a must for any fish tanks or fish nurturing system. They are made with a special formula to remove nitrates and nitrate compounds from the water. They also clean the pollutants and lowers the ammonia levels of tank water.

You will have to check some specifications and compatibility issues before buying any nitrate cleaner. We are going to mention some of the important details and tips for your purchasing ventures.


You have to be concerned about the safety of your fish and other water animals first. Do not go for fast working and cheap products. They tend to be harmful to the water species and the quality of the tank water.

Always look for known brands with good reviews. They might cost more money but it is always better to be safe than sorry. We suggest you buy the high quality and completely safe nitrate removers that clear nitrates, pollutants, and unwanted metals from the tank water.


It is suggested that you choose a nitrate remover that works on nitrate compounds, toxins, and harmful metals. Some cleaners are capable of removing harmful toxins, such as chloramine, chlorine, and ammonia.

You should always buy high-quality removers that work on multiple issues and does not hurt the pets and plants.


One important thing but people tend to forget is about renowned brands. You should buy quality products from known brands that have authentic reviews.


You should buy multi-purpose nitrate removers. Some removers are effective on ammonia level balancing, organic waste cleaning, and PH balancing capabilities. There are few water conditioners with nitrate removing functions.

Do not waste your money on cheap products. Always buy the ones that are helpful for the overall water tank ecosystem. You will be happy to know that some of them are even capable of cleaning floating debris from the water tank.


Try to choose removers that come with proper usage instructions. You do not want to overdose on these products or cause more harm rather than usefulness.

The guidelines should be written in clear and comprehensive language. They should be simple and understandable. Some products even come with illustrated instructions.


Pricing is another aspect that you must think about. Always try to buy the best one according to your budget. Nitrate removers come in different sizes and prices depend upon that.

There are multipurpose nitrate removers with conditioning facilities and those are generally costlier than the regular ones. You will find nitrate removers from 10 USD to 40 USD according to brands and usage capabilities.

Where to Buy It?

Well, you can find the best nitrate remover from your nearby pet shop. You can also find it in any authentic online shop.



Q: What is the nitrate remover?

A: A nitrate remover is a substance used for Aquariums to clear harmful chemicals like nitrate, phosphate, Ammonia, etc. In an aquarium, harmful substances can be made for different sources like fish food, fish waste, etc. And a nitrate remover can

Q: What is the best nitrate remover for freshwater?

A: Seachem Prime Fresh and Saltwater Conditioner and Microbe-Lift NiteOutII for Home Aquariums are widely known as the best nitrate remover for freshwater.

Q: How to use a nitrate remover?

A: You can check the direction of using and apply the mentioned amount of nitrate remover on the water. But you should keep it in mind that using too much nitrate can be the cause of many harmful effects to your aquatic pets.

Q: Why should I use a nitrate remover?

A: You should use a nitrate remover to keep the water inside the tank clean from nitrate, ammonia, phosphate, and similar types of harmful substances.

Q: What are the types of nitrate remover?

A: There are different types of nitrate remover like nitrate tablets, nitrate pads, Volcanic stone, Activated carbon, Sponge Nitrate, etc.

Q: What are the easiest ways to remove nitrates from water?

A: Using a nitrate remover or a volcanic stone is the easiest way to remove nitrates from aquarium tank water.

Q: Can a nitrate remover work on both salt and freshwater?

A: Lots of effective nitrate remover can work on both salt and freshwater. For example, Seachem Prime Fresh and Saltwater Conditioner.

Q: How often should you use nitrate remover?

A: Each kind of nitrate remover has a recommended dose and you should follow the exact instructions.


Final Verdict

So, you have learned so much additional information about the best nitrate remover for freshwater. At the same time, I have introduced you to 8 best items of them. So, hopefully, you will make the mistake like my cousin and end up losing all your favorite aquatic inhabitants. So, use the right amount of Nitrate removers to keep your pet fish healthy and happy in a suitable watery environment.

It’s here, I am saying goodbye. Please inform us if you want to learn anything related to this topic. But what I am pleading is to keep good care of your pets if you plan to keep them at your home. Thank you a million times for staying with us.

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