Seachem Stability Review: How to Use, Dosage & more

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seachem stability aquarium bacteria supplement

If you’re looking for an aquarium water conditioner that is both reliable and affordable, Seachem Stability is a great option to consider. This product has been on the market for many years and has a proven track record of success.

In this Seachem Stability review, we will take a closer look at what this product does and how to use it. We’ll also discuss some of the key benefits that you can expect to enjoy if you decide to use Seachem Stability or any other aquarium bacteria supplement in your own aquarium.

When To Add Bacteria To Aquarium

Seachem Stability contains live bacteria that will help to maintain water quality and clarity. Beneficial bacteria are necessary for every tank containing fish, plants, or any other aquatic life. Here are a few cases when you should add bacteria to the aquarium.

During the Tank Cycle

The first and most important time to add bacteria to your aquarium is during the tank cycle. The tank cycle is when you set up a new aquarium and need to establish a healthy population of beneficial bacteria. The tank cycle can take up to eight weeks.

Adding live plants or using a product like Seachem Stability will help to jump-start the process by providing a source of good bacteria. It is important to note that bacteria in a bottle aren’t necessary for a cycling tank, and it is a completely optional purchase.

When Adding New Fish

Whenever you add new fish to your aquarium, it is a good idea to add some bacteria as well. This will help to prevent ammonia and nitrite spikes that can occur when new fish are introduced. Adding Seachem Stability or another similar product will help to ensure that your new fish have a smooth transition into their new home.

adding new fish into aquarium

During an Ammonia Spike

Overfeeding, decaying fish/plants, or even overcleaning, can lead to ammonia levels spiking up. If you experience an ammonia spike in your aquarium, it is important to add bacteria as soon as possible. Ammonia can be deadly to fish, so adding Seachem bacteria help to keep your fish safe until the ammonia levels return to normal.

It is recommended to dose the tank with Seachem Prime first, which helps detoxify that ammonia. After the ammonia has been detoxified, you can then add Seachem Stability to help maintain water quality.

During cleaning/establishment of a filter

Cleaning or adding a new filter to your aquarium can also lead to a loss of beneficial bacteria. Whenever you do any work on your aquarium that might disturb the bacteria colonies, it is a good idea to add some Seachem Stability or another water conditioner. This will help to ensure that your beneficial bacteria population stays healthy and doesn’t take too long to recover.

As you can see, there are many different situations where adding bacteria can be helpful. Beneficial bacterias are an essential part of keeping your aquarium water clean and clear, and they can also help to keep your fish safe in the event of an ammonia spike.

Seachem Stability Overview

Seachem Stability is essentially a mix of beneficial bacteria, which in time help break down any wasteful substances along with ammonia, nitrate, and nitrite. A tank must have enough good bacteria in its water to conduct the breakdown of these toxins since they are very harmful to the fish.

seachem stability water conditioner

When a new fish settle into an aquarium and after the filtering unit system has been working for a while, beneficial bacteria will come to develop on their own. This process can take a few weeks to a month or two. In the meantime, there are chances of your fish being exposed to high levels of toxins, which is where Seachem Stability comes into play as it can be added to the tank immediately.

What It Does?

Seachem Stability is an innovative water conditioner, which quickly and safely establishes biofilter and prevents new tank syndrome. New tank syndrome is a term aquarists use to describe a situation in which nitrate levels rise quickly in an aquarium.

Nitrite is a highly toxic substance that can be fatal for your fish in higher amounts. It is vital for your tank to have regular checkups of the water parameters to ensure that everything is running properly and make any necessary alternations before it is too late.

One of the benefits of Seachem Stability is that it can help to establish your biofilter quickly, which will help to keep nitrate and ammonia levels low in your aquarium. It is also safe for both fresh and saltwater aquariums.

Seachem Prime vs. Stability

Seachem Prime and Stability are both water conditioners that help to establish your biofilter quickly. Seachem Prime is a bit more expensive than Seachem Stability, but it also has some additional benefits. Seachem Prime can be used to detoxify ammonia, nitrite, and nitrate. It can also be used to remove chloramine and chlorine from your aquarium water.

Seachem Stability and seachem prime water conditioner

Seachem Stability is a bit cheaper than Seachem Prime, but it does not have the same ability to detoxify ammonia, nitrite, and nitrate. Seachem Stability is still an excellent product and can be used in both fresh and saltwater aquariums.

If you are looking for a water conditioner that is slightly cheaper and will still help to establish your biofilter quickly, then Seachem Stability is the way to go. However, if you are looking for the best aquarium bacteria supplement that has some additional benefits, then Seachem Prime might be the better option for you.

How to Use Seachem Stability?

Seachem Stability can be added to your aquarium water either directly or by using a media bag. If you are adding it directly to your aquarium, you will want to add it slowly so that you don’t disturb the water too much.

Seachem Stability dosage

If you are using a media bag, simply place the Seachem Stability in the media bag and then place it in your filter. It is important to note that Seachem Stability is not a cure-all for all of the problems that can occur in an aquarium.

It is still important to regularly test your water parameters and take care of your aquarium so that your fish can thrive.


Dosage for Seachem Stability will depend on the size of your aquarium and in your ammonia or nitrate levels. Seachem Stability should be added at a rate of one capful (approximately 30 ml) for each 200 L (50 gallons*) of aquarium water.

  • For ammonia/nitrite levels below 1ppm, dose both of the products and wait a full 24 hours before you conduct a check-up.
  • For ammonia/nitrite levels above 1ppm do a water change of up to 75% (minimally 50%) depending on the actual level of the toxins. After that, dose Prime and Stability.

It is important to keep ammonia and/or nitrite levels below 1ppm so that the water conditioner can work faster on turning them into non-toxic forms. With that low level of 1ppm, Stability combined with Prime will bind the toxins into non-toxins in 24 hours. This quick change will be very useful for your growing beneficial bacteria as they will have something to feed on.


To anyone who isn’t quite convinced about the Seachem Stability or its combo with Prime, we present some suggestions you might want to look into. Our team has managed to handpick the best water conditioner currently on the market.

API Quick Start

API quick start takes its very name from its impressive ability to prepare an aquarium for more fish to be added into. It supplies sufficient amounts of beneficial bacteria that help turn toxic ammonia into safe nitrate, protecting your fish and keeping their environment healthy and clean.

api quick start aquarium bacteria supplement
API Quick Start
Best for new aquariums

Easy to use

Value for money

Prevent fish stress

Great for maintenance


This product is ideally used in situations such as kickstarting a new aquarium. Another excellent way to use this product is while performing a thorough water change on an aquarium. We also recommend a quick start to anyone who has recently just changed their filters, to help make up for the loss of good bacteria that were removed along with the old filter.

API quick start nitrifying bacteria is perfect for both fresh and saltwater environments.

Fluval Cycle Biological Enhancer

Fluval Cycle is a biological enhancer that does an excellent job at kickstarting the cycling process in new aquariums. It contains over 14 different strains of bacteria that work together to quickly break down ammonia and nitrites.

fluval cycle biological enhancer aquarium bacteria supplement
API Quick Start
Best natural

All natural

Highly effective

Eliminates ammonia

Eliminates nitrite


The Fluval Cycle Bio Enhancer will fill your tank with enough beneficial bacteria to keep it safe and healthy. If used regularly, the Fluval cycle bio enhancer will prevent harmful bacteria from settling into the tank and negatively impact the health of your fish.

The product contains no contaminants, removes ammonia and nitrates, and is ideal for freshwater and saltwater aquariums.

Our Verdict

Although Seachem Stability is a great product with many benefits, we still are adamant about using both the Seachem Stability and Seachem Prime together. When we first purchased the Stability, everyone on our team could agree that we had a great product in our hands; however, everyone was eager to try mixing it with the Prime.

Once we did, we all agreed that this is probably the best way to navigate an ammonia nitrate and nitrite spike. It’s a complete solution that will probably leave everyone with amazing results.

If you still don’t feel convinced about the Stability, we recommend the Fluval Bio Enhancer or API Quick Start if you need to change something up like the water or the filter. They’re especially good for new aquariums and have little difference between their results.


Knowing more about this water conditioner is crucial when attempting to rid ammonia or nitrite from the aquarium. Ahead, learn about what Seachem Stability does when to use it, and other crucial intel about this aquarium bacteria supplement. 

Q: What does Seachem Stability do?

Seachem Stability is a water conditioner that helps to quickly establish and maintain ammonia/nitrite levels in aquariums. It does this by providing a source of beneficial bacteria that break down these toxins into non-toxic forms.

Q: When should I use Seachem Stability?

Seachem Stability can be used in a number of different situations, such as when setting up a new aquarium or performing a water change. It is also recommended for use after filter changes, to help replenish the beneficial bacteria that are lost during the process.

Q: Can you use too much Seachem Stability?

It is possible to use too much Seachem Stability, which can result in an overgrowth of beneficial bacteria. This can lead to water quality issues such as cloudy water or foul smells. You should use the recommended dosage for your aquarium size, and only use more if absolutely necessary.

Q: Can I use Seachem Stability every day?

Seachem Stability can be used every day if needed. However, it is not necessary to use it on a daily basis. It can be used as often as required to maintain ammonia/nitrite levels in the aquarium.

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I am Mario, a experienced fish keepr and the editor-in-chief of Epic Aquarium.

At Epic Aquarium, we take our commitment to providing comprehensive and unbiased reviews very seriously. Our team carefully reviews each product, and we only recommend the very best in terms of quality. We also consult with leading fish keeper experts to ensure that each article is based on the most reliable and up-to-date information available.

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