6 Best Ammonia Removers For Fish Tanks & How To Choose

Last Updated on 2023-06-21

Maintaining a healthy aquarium environment is crucial for the well-being of your fish and other aquatic creatures. One of the biggest threats to a healthy aquarium is ammonia buildup, which can be harmful or even fatal to your fish. Fortunately, there are ammonia removers available on the market that can help to eliminate this problem.

In this article, we will discuss some of the best ammonia removers for fish tanks to help you keep your aquarium environment healthy and safe. So, keep reading to find out everything you need to know! 

Our Top Picks:

What to Look For in an Ammonia Remover

To help keep ammonia levels under control,  using an ammonia remover in your aquarium is pretty essential. But with so many options available, how do you know which ammonia remover is the right one for your tank? Here are some things to look for:

1. Effectiveness

Of course, the most important thing to look for is how well the ammonia remover actually works. Look for products with proven track records and positive reviews from other aquarium owners.

2. Safety

It’s important to choose an ammonia remover that is safe for your fish and other aquatic life in your tank. Avoid products with harsh chemicals or that could cause harm to your pets.

3. Ease of Use

Ammonia removers should be easy to use and require minimal maintenance. Look for products that are simple to add to your tank and that don’t require frequent application.

4. Compatibility

Some ammonia removers may not be compatible with certain types of filters or other aquarium equipment. Make sure to choose a product that is compatible with your setup.

5. Price

Finally, consider the cost of the ammonia remover. While you don’t want to skimp on quality, it’s important to choose a product that fits within your budget.

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Best Ammonia Remover For Fish Tank

Here are some of the best ammonia removers available in the market right now that you can choose from:

1. Seachem Prime – Top Rated

Seachem Prime is a top-rated ammonia remover on Amazon and for a good reason. It not only removes ammonia from the water but also detoxifies nitrite and nitrate. It is safe for both freshwater and saltwater aquariums, so it’s a versatile option. It is easy to use, and a small amount goes a long way, making it cost-effective in the long run. 

  • Pros:
  • Removes ammonia, nitrite, and nitrate
  • Safe for both freshwater and saltwater aquariums
  • Highly concentrated and cost-effective
  • Long-lasting


  • Strong smell
Seachem Prime Fresh and Saltwater Conditioner 2 Liters with Dispenser Pump, and 10ct Pet Wipes
  • Package Include: (1) 2 Liters Seachem Prime Fresh, 1 Pump, and 10ct Pet Faves pet wiipes
  • Concentrated conditioner for marine and freshwater aquarium use
  • Removes chlorine & chloramine and also detoxifies heavy metals
  • Makes ammonia, nitrite, & nitrate safe yet available for nitrifying bacteria

2. API AMMO-LOCK – Best Value for Money

API AMMO-LOCK is an excellent value-for-money ammonia remover. It is effective in neutralizing ammonia in the water, making it safe for fish and other aquatic life. It is easy to use and can treat up to 480 gallons of water. It also helps in reducing fish stress caused by high ammonia levels.


  • Neutralizes ammonia effectively
  • Good value for money
  • Easy to use
  • Reduces fish stress caused by high ammonia levels


  • May not be as effective on high levels of ammonia
API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
  • Contains one (1) API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
  • Detoxifies ammonia in aquarium water and tap water
  • Works instantly to make aquarium water safe for fish
  • Reduction in ammonia levels measurable on any API Test Kits
  • Dose freshwater and saltwater every two days until ammonia is not detected

3. Jungle Tank Buddies Ammonia Clear Tablets

Jungle Tank Buddies Ammonia Clear Tablets are a popular choice for aquarium hobbyists looking for a simple and effective way to reduce ammonia levels in their fish tank. These tablets are designed to dissolve quickly in the water, releasing a blend of active ingredients that work to neutralize and remove harmful ammonia from the tank. 


  • Tablets dissolve quickly in water.
  • Can be used in both freshwater and saltwater aquariums
  • Comes in a convenient blister pack
  • Safe for fish and other aquatic creatures when used as directed.


  • Some users have reported that the tablets can cause cloudiness in the water, 
  • Can be more expensive compared to other ammonia removers on the market.
Jungle TB605W Tank Buddies Ammonia Clear Tablets, 8-Count
  • Removes Ammonia Fast
  • Reduces high ammonia levels caused by overcrowding, fish waste or decayed food in established aquariums
  • For Freshwater and Saltwater
  • For use in glass and acrylic aquariums

4. Marineland White Diamond

Marineland White Diamond is a highly-rated ammonia remover for fish tanks that promises to clear up cloudy water caused by organic debris, fish waste, and other pollutants. Its unique formula features a blend of activated carbon and special zeolite crystals that work together to remove impurities and odor, leaving water crystal clear.


  • Highly effective at removing ammonia, nitrite, and organic debris
  • Fast-acting and long-lasting formula
  • Helps to reduce fish stress and improve overall water quality
  • Can be used in both freshwater and saltwater aquariums


  • May not be effective for heavily polluted tanks
  • Can be expensive compared to other ammonia removers on the market
  • Some users report a slight decrease in pH levels after use
Marineland White Diamond 50 Ounces, Removes Toxic Ammonia, aquarium Filter Media
  • REMOVES AMMONIA: White Diamond Zeolite removes toxic ammonia for a healthier aquatic environment.
  • FOR FRESHWATER: Use in freshwater aquariums and ponds as indicated.
  • IDEAL FOR NEW AQUARIUMS: Controls ammonia spikes to keep water clean and fish-safe.
  • U.
  • S.

5. Penn-Plax Ammonia Reducer

Penn-Plax Ammonia Reducer is a product designed to remove ammonia from aquarium water, which can be harmful to fish and other aquatic life. This ammonia reducer is made of a unique blend of natural compounds that work together to eliminate ammonia in the water.


  • Fast-acting
  • Made of natural ingredients
  • Fast acting with noticeable results in just a few hours


  • May require multiple treatments
  • May affect pH levels
Penn-Plax Ammonia Reducer Aquarium Filter Media Pad – Easy to Cut into Any Size Your Filter Requires – 10” x 18”
  • MADE FOR ALL FILTRATION NEEDS: Our 10” x 18” Ammonia Reducer Aquarium Filter Pads are infused with natural mineral powder, and are made to be trimmed and shaped to fit your filtration needs. These pads are designed for freshwater and saltwater aquariums, as well as outdoor ponds!
  • CLEAN, CRYSTAL-CLEAR WATER: In addition to trapping loose particulate matter, these pads help to maintain ammonia levels, and to clear up discolorations, from your aquarium’s water. They help keep water inside your tank crystal clean!
  • HELPFUL INSTRUCTIONS: Please rinse thoroughly with cold water before placing in filter. Never use soap, as the residual soap particles can harm your fish. For best results, replace filter media every 4 – 6 weeks.
  • MEASUREMENTS: Overall = 10” x 18”
  • SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: PENN-PLAX is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.

6. Fluval Ammonia Remover

Fluval Ammonia Remover is a specialized media designed to remove toxic ammonia from freshwater aquariums. The product uses a special resin that binds and removes ammonia from the water column, helping to create a safe and healthy environment for fish and other aquatic life.


  • Highly effective at removing ammonia from freshwater aquariums
  • Available in a range of sizes to fit different filter systems
  • Easy to use with simple placement and maintenance instructions


  • Not suitable for saltwater aquariums
  • May require frequent replacement depending on aquarium conditions
Fluval Ammonia Remover, Chemical Filter Media for Freshwater Aquariums, 3-Pack
  • Chemical filter media that removes toxic ammonia as water passes over it
  • Provides a healthy environment for well-stocked freshwater aquariums
  • Controlling ammonia levels reduces stress on fish
  • For freshwater use only; for best results, replace once a month
  • Includes three 180-gram nylon bags

Signs Of Too Much Ammonia In Your Fish Tank

As with any living environment, an aquarium requires careful attention to maintain a healthy ecosystem for your aquatic pets. One of the key factors to consider is the presence of ammonia, a toxic substance that can build up in the tank and harm your fish. Here are the signs of too much ammonia in your fish tank and what you can do to prevent it.

1. Cloudy Water

One of the most visible signs of high ammonia levels in your aquarium is cloudy water. If your tank water appears hazy or opaque, it could be due to an overgrowth of bacteria, which is a common result of high ammonia levels. While it is normal for some aquariums to have a bit of cloudiness, a persistent murky appearance is a cause for concern.

2. Unpleasant Odor

Ammonia has a strong, pungent odor that is often compared to the smell of cat urine. If you notice a foul smell coming from your fish tank, it could be a sign that ammonia levels are too high. Be sure to identify the source of the smell and take immediate action to reduce ammonia levels.

3. Fish Behavior

Another indicator of high ammonia levels in your fish tank is changes in your fish’s behavior. If your fish appear lethargic, are swimming erratically, or are gasping at the surface of the water, it could be due to elevated ammonia levels. Additionally, if your fish are not eating or are losing weight, it could be a sign of a larger problem in the tank.

4. Brown Algae Growth

High ammonia levels can lead to the growth of brown algae, which can appear on surfaces in your tank, such as rocks or ornaments. While some algae growth is normal in an aquarium, brown algae can quickly take over and become a problem if not addressed promptly.

6 Best Ammonia Removers For Fish Tanks & How To Choose

How To Use Ammonia Remover

Using ammonia remover in your fish tank is a simple and effective way to reduce ammonia levels and keep your aquatic pets healthy. Follow these steps to effectively use ammonia remover in your aquarium:

1. Test your water: Before adding any ammonia remover to your fish tank, it’s important to test your water’s ammonia levels using a reliable test kit. This will help you determine the severity of the problem and the amount of ammonia remover needed.

2. Calculate the dosage: Once you have determined the ammonia levels, calculate the correct amount of ammonia remover needed based on the product’s instructions and the size of your aquarium.

3. Add the ammonia remover: Add the calculated amount of ammonia remover to your aquarium, following the product’s instructions carefully. Some products may require you to dissolve the ammonia remover in a separate container before adding it to the tank.

4. Monitor ammonia levels: After adding the ammonia remover, it’s important to regularly test your water’s ammonia levels to ensure that they remain at safe levels. If needed, repeat the dosage according to the product’s instructions.

5. Maintain your aquarium: In addition to using ammonia remover, it’s important to maintain your aquarium by regularly performing water changes, cleaning your tank and filter, and avoiding overfeeding your fish. This will help prevent ammonia buildup and ensure a healthy environment for your aquatic pets.


Is Ammonia Remover Bad For Fish?

Ammonia remover is not harmful to fish if used properly. It helps in converting toxic ammonia waste into a non-toxic form that can be easily removed by the aquarium filter. However, improper use of ammonia remover can lead to reduced water hardness and alkalinity or sudden drops in ammonia levels.


Choosing the right ammonia remover for your fish tank is an important decision that can greatly impact the health and well-being of your fish. By considering factors such as effectiveness, ease of use, and compatibility with your tank setup, you can find the best ammonia remover for your specific needs. Remember to always follow the instructions on the product and perform regular aquarium maintenance to ensure a healthy and thriving aquarium environment.

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