How to Raise pH in Aquarium

Do you long for your fish to have crystal-clear water, but the pH keeps on dropping? You’re not alone!

Many aquarium hobbyists find that maintaining a healthy pH balance can be tricky.

But with the right guidance, you can raise and maintain the pH of your tank with relative ease – so don’t despair!

In this blog post, we’ll be providing tips and useful facts on how to use liquid solutions and other products to adjust pH levels in your aquarium.

raise ph in aquarium
Measuring Water pH in an Aquarium

Ways To Raise Ph In Your Aquarium

There are several ways to raise pH in aquariums, depending on the equipment and materials you have available.


View Item on Amazon

API pH Up is an affordable,  easy-to-use option for controlled results.

With a simple and easy-to-use solution, API PH Up uses Sodium Bicarbonate, or baking soda, to raise and stabilize the pH.

All you have to do is slowly add the powder and test your water with an API Test Kit until you get the desired reading.

Regular use of API pH Up is recommended to ensure that the pH stays healthy for your fish and other critters living in the tank.

Keep your eye on the chlorine levels too!

With this inexpensive option, you can raise and maintain a healthy pH level in your aquarium with ease.

Water Aeration

Water aeration is one of the most efficient and safe methods for raising the pH in your aquarium.

This process involves agitating and oxygenating the water with a pump or air stone, which helps to properly circulate and distribute the water in the tank.

This improves water quality by creating an environment where bacteria can thrive, leading to better health for the fish and other aquatic life.

In addition, oxygenated water helps raise pH levels naturally, providing a healthy balance and preventing over-acidity.

Water aeration is a versatile method that brings many beneficial effects to your aquarium setup, making it one of the safest ways to raise the pH in your tank.

Remove or Boil Driftwood

Boiling or removing driftwood are two safe ways to raise the pH in your aquarium.

Boiling driftwood removes impurities like tannins which can lower the pH, so it’s best to boil any driftwood before adding it to the tank.

Removing driftwood is also an effective way to raise the pH levels in an aquarium as driftwood can leech tannins into the water, thus dropping the tank’s pH level.

This should be done periodically depending on how much driftwood you have in your tank – it ensures that there isn’t too much tannin in the tank, and your fish remain healthy and happy!

Baking Soda

One of the most effective and safe ways to raise the pH in your aquarium is by using baking soda.

Baking soda, also known as sodium bicarbonate, helps raise the pH levels in your tanks as its alkaline nature decreases the acidity of your water.

It can be infiltrated into the tank slowly using either a syringe or a glass bottle to spread evenly throughout the water. While its effects are relatively short-lived, it is an incredibly cost-efficient way to raise your aquarium’s pH.

Plus, you don’t need any special equipment to test for or apply baking soda – all you need is a container and access to the water!

If you’re looking for an easy and inexpensive way to raise pH in your aquarium, then baking soda is definitely worth considering!

Crushed corals

Crushed corals are a great and easy way to raise the pH level in your aquarium.

Corals, such as aragonite or ocean fossilized coral, naturally produce chemical buffers which raise the pH.

When you sprinkle crushed corals into your tank, these chemical buffers dissolve into the water, raising the pH without adding potentially hazardous chemicals to your tank.

It’s a safe, simple, and natural way to raise the pH in your aquarium – plus it has the added benefit of adding minerals and trace elements to help promote healthy fish and aquatic plants!


Dolomite is a naturally occurring mineral that can raise pH levels without artificial chemicals or additives.

It consists of magnesium carbonate and calcium carbonate, both released slowly over time to raise the pH levels gradually in the water.

This method is considered much safer for aquatic life as it does not shock them with sudden pH changes like some other methods may do.

With Dolomite as part of your regular maintenance routine for your fish tank, you will have peace of mind knowing that you are doing your best to raise the pH level safely and effectively.

Aragonite sand

Aragonite sand is made up of calcium carbonate, which helps raise the pH levels of your tank over time.

Basically, it absorbs toxins like metals and nitrates, while increasing alkalinity and buffering capacity at the same time!

What’s more, this type of sand provides an excellent substrate for beneficial bacteria growth and boosts its aesthetic appeal too!

Aragonite sand can be a safe, inexpensive way to raise ph levels in your aquarium without resorting to harsher chemical methods.


Seashells, whether synthetic or natural, act as a buffer that raises the acid-neutralizing capacity of your aquarium water while propelling the pH up.

Not only are these shells beautiful and aesthetically pleasing, but they are made of calcium carbonate which helps raise the pH levels in your tank without disturbing any other water parameters such as ammonia, nitrate, and nitrite.

Adding seashells is not just safe for your aquatic inhabitants, but also cost-effective if done correctly.

Whatever your preferred method is, make sure it’s safe for the fish first and foremost – once safety measures are taken care of, it’ll be a breeze to adjust the pH of your aquarium!

What Causes Low Ph In Fish Tanks?

Low pH levels can result from having the wrong type or too many of certain fish species, overstocked tanks, imbalanced filtration systems, or lack of oxygen.

The main causes for pH level drops in aquariums are overfeeding, organics such as leaves decaying in the water, gasses diffusing into the water, and acids released through fish respiration.

To raise your tank’s pH level back to normal, consider smaller and less frequent feedings, removing any organic matter that could be releasing gasses or other toxins, and regularly doing partial water changes.

An easy way to boost your tank’s pH is by adding sodium bicarbonate to raise it slightly until you can get it tested.

While there are plenty of other variables at play when dealing with tank pH levels, these are a few helpful tips that might help raise the pH in your aquarium so it’s an ideal environment for your fishy friends!

What Rocks Raise Ph In Aquarium?

Seiryu stone, limestone, and Texas Holey are just a few of the rocks that can raise pH levels – but each one works differently!

Seiryu stone contains trace elements that raise pH levels in an aquarium through carbonate leaching.

Limestone releases small amounts of calcium as it dissolves which can raise pH over time.

Texas Holey Rock, made up of small holes composed of feldspar or dolomite, increases alkalinity as well as the hardness of the water.

The right choice for you depends on your desired outcome and water chemistry.

Raise Ph In A Fish Tank Naturally

The most common ways to raise pH in a tank are by using coral, driftwood, or limestone gravel to introduce calcium or carbonate into the water, which will raise its alkalinity and pH levels.

Avoiding synthetic products like baking soda or Alka-seltzer is important when going for a more all-natural approach, as these can cause harmful and unpredictable pH spikes.

To determine the best way to raise your aquarium’s pH naturally, it is important to test your water regularly so that you are aware of any sudden changes.

Raise Ph In A Freshwater Aquarium

In general, processes that raise a freshwater aquarium’s ph can range from adding buffers such as sodium carbonate or potassium bicarbonates, to modifying water hardness via cations such as calcium nitrate or magnesium sulfate.

It is important to remember that while these may be effective solutions, they should be used with caution.

For example, using Lye products is not advised as they are more toxic and can raise ph too quickly and too much.

The best way to raise the pH in a freshwater aquarium ultimately depends on the specific environment of the tank – so it is wise to experiment gradually with buffs and other methods until you find what works for your tank’s inhabitants.

With proper testing and adjustment of things like water hardness, an ideal balance for raising ph can be achieved for your particular ecosystem!

Raise Ph In A Saltwater Aquarium

It isn’t always necessary to raise the pH level in a saltwater aquarium, but if you do need to make adjustments the best way to raise it is through naturally-derived buffers.

These buffers help to raise the alkalinity of your aquarium to an optimal level for a healthy tank environment.

Adding crushed coral, live rock or another type of marine substrate often does the trick as these materials naturally raise pH over time.

If not enough natural buffers are present in your tank, then you may need to use commercial pH adjusters to accelerate the process.

Taking good care of your tank and regularly monitoring its parameters are key steps in keeping your aquatic friends happy and healthy!     

Raise Ph In A Reef Tank

One of the best ways to raise your reef tank’s pH levels is by changing your aquarium water.

It’s important to do regular water changes in order to maintain optimal water quality and raise your pH levels.

When changing out the water, it helps to have an extra buffer on hand such as a sodium bicarbonate or baking soda solution which can raise the pH level more quickly.

You can also create a better environment for your reef tank inhabitants by adding additional carbon dioxide sources like aerators, protein skimmers, and live rock.

Doing so will help promote healthy growth and ensure a stable pH balance in your reef tank.

Raise Ph In A Betta Tank

When trying to raise the pH levels in your betta tank, adjusting the water conditions is key.

The best way to do this is to ensure that there is proper filtration and aeration to raise oxygen levels and reduce waste accumulation.

Adding aquarium driftwood or peat moss can raise pH in an aquarium as well, although it should be done gradually over time–otherwise, you might end up with fish that are too “shocked” by their new environment!

Ultimately, once you find the right combination of methods for raising pH in your betta tank, you can rest easy knowing that your fish are living in healthier water and happier homes!

Raise Ph In A Shrimp Tank

When it comes to raising pH levels in a shrimp tank, it’s important to get the balance just right.

Often, a small raise can make a massive difference in shrimp health and coloration.

While there are several ways to raise pH levels, some of the best methods involve introducing materials like coral gravel or crushed dolomite into the water.

This provides minerals and buffers that raise ph naturally.

However, if you’re looking to raise it quickly then adding a specialist aquarium buffer product is your best bet – just be sure to not add too much as this can cause more harm than good!


If you have a low pH in your aquarium, there are several things you can do to raise it.

You can either add chemicals to the water, or take natural measures, such as adding coral, sand, or shells.

Raising the pH level naturally is often the best option, but there are also a wide array of products available on the market.

Whichever method you choose, be sure to do it gradually and test the pH levels often so that you don’t shock the fish.

Leave a Comment

Your email address will not be published. Required fields are marked *