10 Best Nitrate Remover For Freshwater Reviewed in 2021

Nitrate is a component that you will find in every aquarium. In as much as you can’t see it, it is important to manage it because it has adverse effects on your fish. The presence of nitrate in aquarium water can affect the reproductive system or cause other diseases to your fish. So, what is the best nitrate remover for freshwater? Our guide and reviews will help find the right nitrate remover that helps to keep your fish healthy and safe.

We have researched the market on your behalf to provide you with quality products that will help in managing the nitrate levels in the aquarium. I hope after checking our detailed reviews, it will be easier for you to make the right choice.

Where Do Nitrates Come From?

Before we get started, it is important to understand where nitrates come from, so that you can avoid a build up of high nitrate in freshwater aquariums. The main cause of nitrates in your freshwater aquarium is the nitrogen cycle. You have no control over this, so there will always be nitrates. But you can use nitrate removers.

The nitrogen cycle begins from waste creation. This can result from fish poop, uneaten food, or the presence of dead plants and leaves. Various bacteria convert the wastes into ammonia, which is toxic. The second stage of the cycle converts the ammonia to nitrate. In the final stage, the nitrites are converted into nitrates by other kinds of bacteria. And this cycle continues.

TankFirst has been hailed for its ability to detoxify heavy metals and remove chloramines, nitrites, and ammonia from water. For this reason, it has wide applications, including its use in cleaning reef aquariums, marine water, and freshwater.

What has driven TankFirst to fame in the world of nitrate removers is that the ingredients used in this water conditioner do not have any foul smell. The main ingredient used is natural and effective, which means it will not affect your fish in any way.

You can use it any time you add aquarium water, which continually loses water due to evaporation, and causes water changes. This will ensure that any added water is treated for contaminants to keep your fish safe. And if you want to change the water in the aquarium, ensure you add TankFirst Complete Aquarium Water Conditioner for the same purpose. Keep testing your aquarium for the presence of nitrites and ammonia. If detected, add some TankFirst to eliminate them.

TankFirst is quite easy to use, and it is also very forgiving. Even if you add a little excess of the product or you don’t measure it precisely, your fish or aquarium won’t be adversely affected. The same applies to when there are some spills during the addition of the product.

The downsides of TankFirst Complete Aquarium Water Conditioner are quite minor compared to its upsides and do not in any way show anything that can adversely affect your aquarium or your fish. This product is trusted and has been proved to be effective when applied to both saltwater and freshwater species of fish. This includes those that are very sensitive to chemicals like snails and shrimps.

Pros
  • No strong odor like that found in Seachem Prime
  • It's concentrated, making it a good value for money
  • Detoxifies and removes a wide array of unwanted compounds
  • Safe for all aquatic pets including sensitive axolotls, turtles, freshwater shrimp, and corals
  • Easy to use
Cons
  • It does not boost slime coat
  • Not as good in value as Prime

If you are in the market for a rechargeable, and trusted saltwater conditioner as a nitrate remover for your water tank, them Seachem Prime is your answer. It is a synthetic adsorbent that works better than most filtration products. It has numerous qualities that take it to the top of our best nitrate remover for freshwater list. 

Seachem Prime is very popular because it isn’t a mixture of adsorbents or exchangers. Instead, it is a one-of-a-kind macro-porous polymer that can effectively remove both insoluble and soluble impurities from your water tank at capacity and rate that’s 500 percent more than what other filtration products can do.

Seachem Prime can remove organic wastes that are organic hence controlling nitrates, nitrites, and ammonia. These compounds are very harmful to your tank. This product is designed to be used both in freshwater and marine water. It comes in different capacities ranging from 10 mL to 20 L., meaning you can just purchase the right size depending on the size of your tank.

Seachem Prime detoxifies heavy metals, thus keeping your fish safe from the harm caused by these elements. One other great advantage of Seachem Prime is that you can regenerate it with a bleach solution.

Seachem Prime works miracles in water tanks. It is excellent at removing waste that plants, corals, and fish produce.  This will make your water to as clear as crystal. The sulfur-like smell isn’t a big deal because as soon as you pour it into your water tank, the smell will go away. The smell also does not affect your fish in case you use it in an aquarium. Many people like Seachem Prime because it is easy to regenerate. This saves both time and money.

Pros
  • Great value for money
  • It can remove chloramine and a range of other compounds and elements thus protecting your fish from harm
  • Acts fast and can be helpful in case of emergency
  • Easy to use
Cons
  • Does not boost slime coat
  • Has a sulfur-like smell

Seachem Purigen is excellent for use as a water conditioner for your regular water changes and can help you a lot in times of emergencies and does well in the world of nitrate removers. You can use it whenever you notice any spike in nitrates, nitrites, or ammonia. It has a remarkable detoxification ability and will keep your fish out of danger.

Being that it can be regenerated means it will keep your costs of aquarium or water tank maintenance down. You can quickly tell when this product needs regeneration. That’s because it works by adsorbing waste products and in the process changes its color to almost black at the end of its life – the original color is pale blonde. Once it turns back, it means it is exhausted. You can then use a bleach solution to regenerate it. The bleach acts by burning off any organic materials from the tank, thus purifying the water. Definitely a great choice for the best nitrate remover for freshwater and is very safe to use.

Seachem Purigen is a unique synthetic polymer that can clear both insoluble and soluble impurities from water faster than other water filters. The fact that it is not a mixture of adsorbents and exchangers, but an organic resin makes it better at removing waste products and nitrogenous compounds produced by plants, fish, and corals to make your water as clean as possible. This is definitely a contender for the best nitrate remover for freshwater.

Seachem Purigen acts for long, ensuring that your water tank or aquarium stays safe longer. Being that it can be regenerated makes it even more economical than any other water filter. Ensure you use it according to the instructions for it to be effective. The sulfur-like smell usually fades off immediately after it is added to the tank.

Pros
  • Has a large surface area for action because it is both macro reticular and spherical
  • Can be regenerated easily
  • It is safe even for chemical-sensitive aquatic pets
  • Suitable for both freshwater and marine water use
  • Maintains clear water for long
Cons
  • Has sulfur-like smell
  • It lacks ingredients that can build up slime coat

Seachem Denitrate is a water treatment product that’s safe to use and it is used to get rid of organic substances such as nitrites, nitrates, and ammonia from the water. It is simple to use and works by anaerobic denitrification. That is, it contains bacteria that aid in breaking down harmful organic substances into harmless compounds or elements like nitrogen. This happens in a multi-step procedure with the result that you get a substance-free, clear, and clean water.

Seachem Denitrate is very easy to use. It is just inserted into the water filter, and it can be placed anywhere that it can fit. However, it is best to be placed close to a biological filter because it acts as a backup to the filter.

Do not place Seachem Denitrate directly into the water. If you have to do so, put it in something with holes like a basket so that the product can be discharged easily into your water. The holes should not be so large because the fish can interfere with Seachem Denitrate tablets.

If you are using it in your aquarium, it is advisable to put it inside the filter. Each bottle of Seachem Denitrate can treat 100 gallons of water. You can use that information to determine what amount of the product will be enough for your tank.

Even a small amount of nitrites, nitrates, and ammonia can be harmful to your fish. That’s why you need to make sure you have a biological filter to eliminate these compounds. Change the water regularly and use Seachem Denitrate appropriately. This product works in both saltwater and freshwater tanks and is safe for all types of aquatic pets.

Pros
  • Removes ammonia, nitrates, and nitrites
  • Safe to use
  • Easy to use
  • Comes in big bottles which last longer
  • Can be used for both fresh and saltwater
Cons
  • Not very useful when your tanks are heavily stocked
  • Cannot be put directly into water

API Phos-Zorb is a resin made of aluminum oxide and is designed to eliminate silicates and phosphates from water, especially in aquariums.  Phosphate does enter aquarium from tap water, organic matter that decay, and waste from fish. All these, when left to accumulate, can be harmful to aquatic life.

API Phos-Zorb can reduce phosphate when it is placed in a filter media. The product is provided with a convenient and specialized pouch that clears cloudiness in water caused by silicate and phosphate. Once these compounds are removed, the growth of soft and hard corals will be enhanced in saltwater. API Phos-Zorb is also able to eliminate compounds that hinder the growth of plants in aquariums filled with freshwater.

The reason you need to eliminate these compounds – silicate and phosphate – is that they encourage the growth of some algae that can be harmful to your fish.

API Phos-Zorb is very economical because one pouch can treat up to 208 liters (55 US gallons) of water. When not in use, the pouch can be stored in its original container, and it will not dry out. If you need to remove the silicate and phosphate continuously, you can replace the pouch every six to eight weeks.

API Phos-Zorb is the best product for eliminating silicate and phosphate from aquariums and water tanks. It works well if it is free from any organic debris. So, it is better to use a mechanical filter before you add the product. You can replace the pouch once every two months or after a test reveals the presence of silicate or phosphate.

Pros
  • Does not affect the PH
  • It is safe for all plants, invertebrates, and fish
  • You can use it in both saltwater and freshwater aquariums
  • Eliminates compounds that hinder the growth of plants in freshwater aquariums
  • Eliminates cloudiness in water in a reef, saltwater and freshwater aquariums
Cons
  • Cannot eliminate trace elements
  • Requires regular replacements

We all want the safest, versatile, and effective nitrate remover for freshwater and of course, from a trusted brand. Choosing a nitrate remover with all these qualities can be tricky at times. This because most want one that contains all these qualities. Not one or two, but all. That’s a bit wanting.

Well, I come bearing good news. The real deal here is natural nitrate reducer saltwater conditioner. Do you want your freshwater quality enhanced and at the same time, guarantee water safety? Say no more! Natural nitrate reducer saltwater conditioner is the best choice in that case.

This nitrate remover eliminates nitrates by converting them into nitrogen gas, which escapes to the air. This process, known as denitrification, is as natural as possible through the use of enzymes contained in the natural nitrate reducer saltwater conditioner. This nitrate reducer is mainly used for nitrate removal or control in a long-term process.

If you consider using natural nitrate reducer salt water conditioner, it is wise to dose straight to the freshwater column. This nitrate remover has its advantages and disadvantages.

Safety, effective, trusted brand, all the qualities that you want in nitrate remover are guaranteed in natural nitrate reducer saltwater conditioner. Although its effect is not observed instantly, you can be sure that water freshwater will be safe at long last. Its results are worth its price. That’s a sure bet.

Pros
  • Guaranteed safety and ease of using
  • Effective and enhances the freshwater quality
  • Denitrification process of converting nitrates to nitrogen gas is very natural
  • Ensure that tanks are in healthy states by use of the Avant-Garde component that is in the nitrate remover
  • It is effective in controlling nitrates from increasing rapidly, thus ensuring consistency in nitrates removal.
Cons
  • Removal is not instant
  • Relatively expensive

Do you have an aquarium? Do you want to fill it with tap water? Are you wondering if the water will ensure your fish’s safety? You have the option of buying Aqueon tap water conditioner. It the best choice for your case. Use it to ensure that the water is safe for your fish.

The chloramines and chlorine found in tap water are effectively neutralized by the use of Aqueon tap water conditioner. You definitely don’t want the chlorine to mess with the health of your fish. But if you want to completely punish the fish, go ahead and fill the aquarium with tap water without treating it with Aqueon tap water conditioner. Trust me, you will regret it.

This nitrate remover is the savior of tap water that needs to be used in an aquarium. Do you think your fish can be under stress? Imagine bringing a fish to a completely new environment. It has all the reasons to be stressed. Using Aqueon tap water conditioner helps the fish to reduce stress. It quickly adapts to the environment because it is conducive to it.

It is from a reputable brand that helps your fish slime coat to restore. Its performance is outstanding and instant.

When all is said, Aqueon tap water conditioner can be considered as the best chlorine neutralizer. Many people may prefer a guarantee for instant results, which is provided by this nitrate remover. Although it does not neutralize ammonia, your fish will still be safe. It will make you the happiest fish mommy.

Pros
  • The product is of high quality
  • Its performance is with no doubts outstanding
  • It ensures instant results.
  • There is guaranteed ease of using it
  • Its smell is not like that of other conditioners
Cons
  • The bottle design is not good.
  • Does not help at all in neutralizing ammonia

Phosphates, just like nitrates can cause harm to your fish. The key aim of using nitrate removers is to make your freshwater safe for your pet. Red sea NO3:PO4-X gives you a double advantage. Nitrate removal and phosphate reducer. Isn’t that a great deal? Two problems solved by one product. It’s definitely amazing.

If you want to use these products, start with a small dosage, and increase the dosage moderately after some time, say about a week or more. Red sea NO3:PO4-X does not guarantee immediate results. Results are not instant, but effective results are guaranteed. It’s worth the wait.

Providing a solution to double problems, Red sea NO3:PO4-X is definitely the best. With a friendly price and at the same time, guaranteeing effectiveness. The measuring caps provides with these product ensures that there are minimal overdose because an overdose can be dangerous. This product beats the quality of many others in the market.

Pros
  • Nitrate levels can be minimized up to zero
  • Comes with measuring caps to ensure ease in using
  • Naturally removes phosphates
  • Cost friendly
  • From a trusted brand
  • High value which promotes effectiveness
Cons
  • Have a strong smell
  • It can be dangerous if overdosed

For tap water to be safe for fish, use Fluval water conditioner. Its comprehensive nature makes it efficient and ensures that the fresh tap water provides a conducive environment for your fish.  You don’t have to stress out thinking of where to get ocean water for the fish. Tap water combined with the correct dosage of Fluval water conditioner will help you reduce all your stress.

We are all aware that tap water contains chloramines and chlorine. Fluval water conditioner helps to remove the chloramines and chlorine most efficiently. It also ensures that dangerous heavy metals are counterbalanced. This makes the freshwater 100% secure for the fish. Great product!

Fluval water conditioner also ensures that the fish is stress-free. As earlier said, fish are prone to undergo stress, especially when their environment is changed. This product helps the fish in quickly adapting to the new environment hence reducing the stress levels.

Your fish’s fins and scales require a lot of care. Just in case you didn’t know that. Fluval water conditioner ensures the fins, sensitive membrane, and scales protection by torn fins, scrapes and inflammations prevention. This product is suitable for both saltwater and freshwater.

Fluval water conditioner if definitely the best. Considering that it can work perfectly in salty and freshwater. Although its concentration is low, it is can be termed to be an advantage because you don’t have to worry about overdosing. Make your fish stress free by using Fluval water conditioner.

Pros
  • Can be used in both salt and freshwater
  • Effective for maintenance of the tank
  • Effectively neutralizes chlorine
  • Ensure that tap water is secure for your fish
  • Greatly help in reducing stress
  • There is nothing like overdose for this product
Cons
  • It is relatively expensive
  • The dose requires to be doubled to remove chloramines effectively
  • It's concentration is low

Looking for an all in one nitrate remover? Look no further. Tetra Aquasafe plus water conditioner ensures that freshwater is safe and at the same time ensure that the fish’s health is upheld. It ensures that all your needs are catered for with the use of just one product. It is surely worth the shot.

Do you want a product that works effectively and produces immediate results? Tetra Aquasafe plus water conditioner has got you covered on that. It works in the shortest time possible, say seconds, ensuring that chloramine and chlorine is neutralized. Tap water may contain metal substances that may be harmful to the fish. This product helps neutralize these heavy metals too.

You definitely want your fish protected from scrapping as well as enhancement of fast wound healing. Tetra Aquasafe plus water conditioner give it a slime coat. This slim coat is helpful in fast healing of wounds and well as fish scrapping protection.

From the most trusted brand, Tetra Aquasafe plus a water conditioner is fit for both marine and freshwater fish. It has added components that work amazingly to minimize pollution of the aquarium. Every time you set up a new aquarium or think of partially changing water or total replacement, always use this product for the best results.

Tetra Aquasafe plus water conditioner mainly suits small aquariums. Research has shown that it is the leading brand in the market. Ensuring that the water is safe and the fish is healthy, it is a guarantee that this product is the best. Its high price is a clear indication that it’s of high quality.

Pros
  • From a trusted brand
  • It guarantees immediate results
  • Using it is very easy
  • Effective chlorine, chloramines, ammonia and metals neutralization
  • Its quality is considered to be very high
  • Works great with both marine and freshwater fish
Cons
  • It is expensive
  • Not recommended for big aquariums

Buying Guide

Having the best nitrate remover for freshwater will help you maintain safe nitrate levels in the aquarium. Before you buy the right product, there are several things that you should consider. I have listed a few essential things that will help you choose the best nitrate remover for freshwater.

Types      

There are different types of nitrate removers that you can find on the market today. It is important to know these types so that you can determine which one is suitable for your aquarium. The most common types include the following:

  • Liquid water conditioner- This is a nice solution that works well to neutralize chlorine, chloramines, and other types of metals. The product is ideal for both fresh and saltwater aquariums.
  • Nitrate pads- They work well in reducing organic particles, excess food, and other foreign debris.
  • Nitrate sponge- This is another type of nitrate remover that you can get for your freshwater aquarium. It absorbs ammonia and promotes the growth of bacteria.
  • Nitrate tablets- They reduce the level of nitrate in the fish tank to keep your fish healthy. They also promote oxygen intake for the fish to reduce different diseases.

Ingredients

It is wise to check the type of ingredients that are used to make the nitrate remover. Make sure that the product is formulated using natural ingredients so that it can be safe for your fish or live plants and whether or not they can deal with aerobic or anaerobic bacteria. The best nitrate removers reduce nitrates in the fish tank while keeping your fish healthy.

Reliable Brand

When it comes to aquarium products like the best nitrate remover for freshwater, it is essential to consider products from top brands. You want to get quality products that will not have negative effects on your fish or live plants. You’ll also be aware that the filter media being used will take out all types of bacteria (aerobic and anaerobic bacteria). Buy products from brands that are highly trusted on the market so that you can be sure that you are getting the right products

Other Ways to Reduce Aquarium Nitrate in Freshwater Aquariums

When fish in the aquarium are exposed to high levels of nitrates, they can die within a few days. As an aquarium owner, it is important to understand some of how you can keep the levels of nitrates low with or without nitrate removers. The following are some crucial tips that will help you save your fish and keep them healthy.

Always ensure that you make water changes. You can change around 5% of the water after one or two hours. This helps in keeping the nitrate levels low naturally without a nitrate remover.

Another tip that will help in lowering the level of nitrate is to minimize feeding. Overfeeding your fish is one of the main reasons that leads to nitrates in your aquarium. Therefore, provide your fish with adequate food and avoid giving them too much food.

Enhance aeration. You should know that aquariums that high a high concentration of nitrates are mainly low in oxygen. So, you should ensure that there is enough aeration.

Use nitrate removing media. These are special types of filters that work well to reduce nitrate levels in your aquarium.

Frequently Asked Questions

Q: Which is the best nitrate remover for freshwater?

A: There are many types of nitrate removers from freshwater. The best nitrate remover for freshwater product should provide you with better results without hurting your fish. It should also remove ammonia, heavy metals, chlorine, and other toxic materials in the aquarium. We have given you top reviews of recommended nitrate removers for freshwater that you can get today.

Q: Can plants absorb nitrate?

A: Yes, they can. If you get the best aquarium plants, they work amazingly well in absorbing nitrate from the water in the tank. Plants use the nitrite to build blocks hence less toxic. Some of the plants that absorb nitrates include Hornwort and Anacharis, just to mention a few.

Q: What happens when the level of nitrate is too high?

A: Having a high level of nitrate in your aquarium has many adverse effects. Not only does it lead to unwanted diseases, but it also promotes a poor growth rate. High levels of nitrates also reduce the lifespan of your fish and damage the reproductive system of the fish. With all these adverse effects, it is vital to ensure that you keep the nitrate levels as low as possible with nitrate removers.

Q: Do aquarium plants clean water?

A: Yes, they do — all plants in the aquarium help in cleaning the water in a fish tank. Having live aquatic plants in the aquarium helps in pulling the nutrients from the water that result from the fish overfeeding. As a result, the plants play a positive role in an aquarium just like a filter media.

Final Thoughts

Nitrate removers are products that are designed to minimize the nitrate level in your aquarium. In as much as they are not dangerous for the fish, it is important to pay attention to the kind of product that you are buying so that they are safe to use. Not all the products you find on the market can be trusted to deal with high nitrate levels. We have provided you with reviews of the best nitrate remover for freshwater to help you select the most suitable product for your aquarium. These are products from top brands, and they work amazingly well to reduce the level of nitrates in the fish tank. You’ll also want to keep an eye on how much nitrate is being produced in your 

When using nitrate removers, it is important to be extra careful to avoid endangering your aquarium. These products can also cause some side effects if they are used excessively. After trying these products, I would also recommend you to get the best aquarium plants to reduce nitrates, which also work well.

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