Best Aquarium Water Conditioner

When it comes to setting up your aquarium, it is vital to ensure that you’re providing all of the appropriate and suitable conditions for your fish to be comfortable and safe, and for your aquarium plants to thrive.

There are a lot of factors to consider, and a lot of elements that go into achieving the perfect aquarium, but one of the most important is the water.

Unless you are able to access the exact right type of water, you’re probably going to be stuck using tap water to fill your tank. Therefore, it is extremely important that you treat that water with an aquarium water conditioner so that it becomes suitable and safe. 

A water conditioner is very useful when it comes to eliminating chlorine and other chemicals that are commonly found in tap water. You don’t want those levels of chlorine chemicals anywhere near your aquarium, as it can prove toxic and damaging to your fish and the aquarium environment as a whole.

There are many options available in the market for many different types of water conditioners, with many different uses and suitabilities to ensure that your aquarium water is in top shape for your fish.

To help you find the best product with the best overall features, we’ve compiled a list of our five top picks for the best aquarium water conditioner.

In a hurry?

Keeping your aquarium clean and as a safe and suitable environment is vital for the wellbeing of your fish, and the water is one of the most important elements. A water conditioner can easily help make tap water suitable, and it will save you from having to buy special water elsewhere. 

If you’re in a hurry to fill your aquarium up, but you’re not sure which product to get, then we recommend you go for our number one top pick for the overall best aquarium water conditioner: the Seachem Prime Fresh and Saltwater Conditioner.

This is a bestselling product backed by a huge number of positive reviews and ratings, placing it right at the top of our list. The concentrated conditioner permanently removes chlorine and chloramine from the water, and it also detoxifies ammonia, nitrite, and heavy metals.

In just 48 hours it ensures the water is completely safe and suitable for fish. It’s available in different sized bottles, with the largest having a capacity of 4L. You use one capful for every 50 gallons of water, and you let it work before adding the fish.

This water conditioner is also a great save when it comes to emergencies, by simply upping the dosage for a fast solution against ammonia and nitrite.

Overall, it’s highly efficient, and because it can be used on both fresh and saltwater, it also proves a highly versatile and handy product to have!

Here are the main features:

  • Best Selling product
  • Suitable for both fresh and saltwater
  • Removes chlorine and chloramine permanently
  • Detoxifies ammonia, nitrite, and heavy metals
  • Highly efficient and fast-acting
  • Usable in emergency situations

OUR TOP PICK

The Seachem Prime Fresh and Saltwater Conditioner is the overall best choice, and it can be proven by its status as a bestselling product and the overwhelming number of positive reviews and ratings by satisfied customers.

The concentrated conditioner provides you with a strong and powerful treatment of the water, and what’s best, it’s suitable for both fresh and saltwater, making it into a useful and versatile buy.

It removes chloramine and chlorine from the water permanently, making it safe for the aquarium.

It also completely detoxifies ammonia, nitrite, and heavy metals found in the tap water, in just 48 hours. This way, the fish have an even safer environment to thrive in.

The product comes in a bottle and is available in different sizes with different quantities, with the largest bottle containing 4L.

To treat the water, you must use one capful for every 50 gallons, adding it to the water and letting it work before you insert the fish.

If you find yourself in an emergency and you need to quickly neutralize nitrite and ammonia in the water, you can use 5 times the normal dose for a quick solution (with half of that dose needed if the water temperature is above 86 degrees Fahrenheit). 

Pros:

  • Best Selling product
  • Suitable for both fresh and saltwater
  • Removes chlorine and chloramine permanently
  • Detoxifies ammonia, nitrite, and heavy metals
  • Highly efficient and fast-acting
  • Usable in emergency situations

Cons:

  • No downsides

EDITORS CHOICE

The API brand is a great and trustworthy option, with many different products available in the market, designed to make water safe for your aquarium.

The Tap Water Conditioner is a powerful product that can instantly neutralize chlorine, chloramine, and other chemicals in the water that are unsafe for fish. It’s highly versatile, suitable for both fresh and saltwater aquariums.

The highly concentrated formula is strong enough that you don’t need to use too much product at once. In fact, to remove chlorine and detoxify heavy metals, you just need 1ml for 20 gallons of water, and to remove chloramine you can up the dose to 5ml for 30 gallons of water.

The water conditioner is best used any time you change or add water, and it is also heavily recommended that you use it anytime you add new fish into the aquarium.

The API brand also has special fish food to go along with the water conditioner, as it has several products spanning across the different needs of fish and aquariums, but it is not necessary to do so.

With the strength and effectiveness of this water conditioner, your fish will remain safe and protected from any damage caused by tap water chemicals.

Pros:

  • Powerful and highly effective
  • Instantly neutralizes chlorine, chloramine, and other chemicals
  • High concentrated formula - not a lot of product needed
  • Suitable for both fresh and saltwater

Cons:

  • Not as suitable for small tanks due to the high concentration

BEST VALUE

Another excellent choice of product to keep your water safe for the fish is the Tetra AquaSafe Plus Water Conditioner.

It’s safe and efficient for use in both freshwater and marine aquariums, making it a versatile and good value product. Its advanced formula works instantly to neutralize the harmful chemicals and components of tap water, to make it safe for fish.

It removes chlorine, chloramine, and efficiently detoxifies heavy metals. A little product goes a long way, with just one teaspoon needed to treat 10 gallons of water.

It’s also recommended to be used any time the water is changed or added to the aquarium, as well as when new fish are inserted.

What we love about Tetra AquaSafe, is that it also adds a few other beneficial features into the mix. For starters, it helps make the aquarium water a lot clearer, meaning less cleaning maintenance is required.

It also features a slime coat protective barrier that protects the fish from any wounds or cuts, helping them heal faster if they get hurt.

The water also ends up becoming an overall healthier environment, because the water conditioner contains a seaweed extract that helps promote bacteria in the aquarium, which will then be useful for biological filtering.

It’s an outstanding option for promoting a healthy environment for your fish, and very effective in removing any damaging factors!

Pros:

  • Suitable for freshwater and marine aquariums
  • Instantly neutralizes chlorine, chloramine, and heavy metals
  • Features a slime coat protective barrier for the fish
  • Promotes beneficial bacteria and cleans the water
  • Creates a healthy and clean environment

Cons:

  • Doesn’t remove as many dangerous components as other water conditioners

RUNNER UP

If you’re looking for a professional water conditioner that covers all the basics in a single product, making it highly effective and high-quality, then the Natural Rapport Aquarium Water Conditioner is the ideal choice.

It is suitable for both freshwater and saltwater, and it claims to do everything you need to be done, in one single product, so you don’t need to add anything else into the water to help protect or take care of your fish.

It makes the water completely safe by removing chlorine, chloramine, nitrate, ammonia, and any heavy metals. It then also adds electrolytes, adds a slime coating to your fish for protection against wounds, and it helps balance the PH levels of the water.

It’s safe and effective for any fish and aquarium plants and is also recommended for use in live reefs, as the product works perfectly for creating a healthy and boosted environment.

The product claims to have a 100% satisfaction guarantee, with its product being recommended by many professionals for its high-quality results in aquariums of all types. 

Pros:

  • Suitable for freshwater and saltwater aquariums
  • All in one, effective and high-quality product
  • Removes chlorine, chloramine, nitrate, ammonia, and heavy metals
  • Adds electrolytes, a slime coating, and balances PH
  • Recommended for live reefs

Cons:

RUNNER UP

The Fluval Water Conditioner for Aquariums does an excellent job of making the water safe and further protecting your fish.

It is suitable for both freshwater and saltwater aquariums. It effectively neutralizes chlorine, chloramine, and heavy metals from tap water, making it safe for the fish to live in.

Fluval also has a patented formula integrated into the product, designed to reduce the stress of your fish, as well as protecting their fins and scales so they’re safe and comfortable in the aquarium.

The product also helps protect the mucous membranes, which are extra sensitive areas of the fish that might need some extra protection now and then.

To remove the chlorine, just 5ml are needed for 10 gallons of water, but if you want to reap the benefits of the fish protection features, you should use 10ml per every 10 gallons of water.

It should be added any time you change the water or you’re adding new water into the tank. Effective protection for your fish, so that you can use tap water without worrying about any damage!

Pros:

  • Suitable for freshwater and saltwater
  • Neutralizes chlorine, chloramine, and heavy metals
  • Patented formula to reduce stress
  • Protects the fish scales, fins, and mucous membranes

Cons:

  • Doesn’t remove as many chemicals as other water conditioners 

Best Aquarium Water Conditioner Buying Guide

Buying the right water conditioner for your aquarium is highly important, as it is vital that you create a safe environment for your fish by removing any damaging or dangerous chemicals from the tap water you use to fill the tank.

There are many factors to consider, and a few basics that all water conditioners should cover. You can also look out for water conditioners that include bonus features that can help protect the fish even more. 

All water conditioners should effectively remove chlorine and chloramine from the water, as well as work to detoxify heavy metals. More effective water conditioners will also remove nitrate and ammonia, making the water even safer. 

It’s extremely helpful and useful if the water conditioner is suitable for both freshwater and saltwater aquariums, as you then don’t have to be careful to know which is for which.

You should also look out for water conditioners that include protective features, such as slime coating for protecting the fish from wounds and harm, and any bonus features that might help keep the aquarium environment even cleaner.

Some water conditioners might even promote beneficial bacteria to further improve the environment for your fish. 

Always be careful to check the concentration of the water conditioner, and to know exactly how much product is needed for certain amounts of water. If you’re short on product, the water won’t be safe enough for the fish, and if you add too much it might cause discomfort and even some slight damage. 

Frequently Asked Questions

How often should you add a water conditioner to your tank?

You should add a water conditioner to your tank any time you are adding new water, or changing the water completely. This helps keep the water fresh and safe and ensures that there’s never even a single drop of untreated tap water in the tank.

It is also recommended you add some water conditioner any time you are going to insert new fish into the aquarium so that the environment is extra safe during their adaptation period.