How to Clear Murky Pond Water {5 Common Causes}

Do you have murky pond water? I needed to know how to clear murky pond water as well.

After a lot of trial and error, I got it clear. Let me help you out.

Do you think it is best to clear a murky pond? If you agree with me then, you have a complete guide right here on clearing a murky pond in this article.

How to Clear Murky Pond Water

The fastest way to clear murky pond water is to add a chemical such as tera pond crystal water which will clear the water in a few hours.

Many things can cause muck to stir up in your pond. The basic solution for hazy water is to get rid of extra garbage and set up a regular maintenance schedule.

Maintaining regular sludge treatments with pond tablets or pond flocculants can assist keep waste levels in check.

Why is My Pond Water Murky?

There are several causes of murky pond water. The 5 most common causes of murky pond water are:

  1. turbidity
  2. suspended organic or inorganic particles
  3. heavy rain
  4. new plants
  5. mating fish

1. Turbidity

When your pond is experiencing high turbidity, you will start to see the water turn murky. The property or state of becoming hazy as a result of the presence of many little particles of matter. By eliminating sediment, the water is treated to reduce turbidity, or cloudiness.

2. Suspended organic or inorganic particles

Murky water will occur when there are too many suspended organic or inorganic particles in the pond. These particles cause the pond water to change color and become cloudy. The water’s murkiness becomes more obvious when something stirs the water, causing the particles to mix up with it.

3. Heavy rain

Another cause of murky pond water is heavy rain. When rain falls heavily, it washes particles, dirt, etc., into the pond, causing it to become cloudy. It usually occurs when your pond is at a position affected by erosion.

4. New plants

When you add new plants to your pond, the water can turn murky. You might have to control the type of plants you add to your pond. Clean-outs can also make your pond water murky by stirring up settled dirt.

5. Mating fish

You will also notice your pond becoming murky when fish are mating. When mating, they will stir up the tank during their ritual, causing murk all over the pond. There are also several other reasons you have murky pond water.

How Do I Clear Murky Water Pond?

 Murky water in your pond will make it look unattractive and unpleasant. You have to get rid of this murkiness for the sake of your fish and pond. You can clear the murky water pond by using a pond flocculant.

You can also use:

  1. Fine filter mats to remove debris from the pond to clear it.
  2. Gypsum to reduce the water’s turbidity and clear out the murky water. Gypsum contains calcium and Sulphur that helps keep the water clear.
  3. Epsom salts that contain magnesium and Sulphur to clear murky pond water.
  4. Limestone and alum. You can also use them to remove suspended clay particles from the pond.

Gypsum can be a very good choice as it is a neutral salt. It will not affect the water’s pH but help you keep the water clear. Ensure you choose the right clearing murky pond, and keep your pond clean and clear.

Why is My Pond Water Cloudy?

Cloudy water is a common problem most aquarists encounter with their ponds. There are several reasons your pond water is cloudy, but it is often a result of poor water quality. When there are food particles in the water and fish waste, you will see the water start becoming cloudy.

Here are also other causes of cloudy water in the tank:

1. Bacteria

Bacteria can be one of the most significant causes of cloudy water in your pond. When you start having excess bacteria in your pond, you will start noticing the water becoming cloudy. Some bacteria can be harmful to your fish, so you should find a solution to them.

2. Excess nutrients

If you have excess nutrients in your pond, you will start to notice that your water is becoming cloudy. The excess nutrients will cause the water organisms to thrive in the pond. These organisms will contribute to the cloudiness of the water.

3. Algae

One of the most common disturbances pond owners encounter is algae growth. Algae growth will cause your pond water to become cloudy even if other factors do not contribute. They can grow excessively, causing your water to become more cloudy.

4. Debris or particles

While feeding your fish, some leftover foods go to the bottom. Peradventure, some things happened, and some particles also got deposited in the pond. All these particles and debris will cause your pond water to become cloudy.

5. Weather changes

The weather can also cause the water in your pond to become cloudy. In cold weather, bacteria tend to bloom, causing your water to become cloudy. Coldwater will also cause the growth of other organisms that cause water cloudiness.

How Do I Make My Pond Water Clear Naturally?

There are different ways you can make your pond water clear. You can do this by:

  1. Adding beneficial bacteria to the pond. The beneficial bacteria will help eat up algae and other cloud-causing particles or organisms in the pond.
  2. Add a biofilter to the pond to keep it clear. The biofilter should be large enough to be efficient for your pond. The larger the pond, the larger the biofilter you will need.
  3. Reduce the amount of food you give your fish to help keep the water clear. When you feed excess food to your fish, they drop some in the pond. The ones they drop in the pond cause the water to become cloudy, so cut back on fish food to keep the water clear.
  4. Ensuring you do not add too many fish to the pond.
  5. Clean the surrounding of your pond to keep the water clear. Ensure you keep your pond water clear for the organisms’ safety in it.

What to Put in My Pond Water to Make it Clear?

You can add pond flocculants to the tank to keep the water clean.

You can also add alum, gypsum, limestone, etc. if you can either of them to keep your pond clear.

Try barley straw as well. In addition to being a natural pond algae killer, barley straw is also safe for your fish and plants.

Cloudy Pond Water Problem

Cloudy pond water can cause all sorts of problems. Your fish could be suffering from a lack of oxygen.

  • Fish could be gasping near the pond’s surface or at any water entrance locations.
  • Decomposing organic stuff may emit foul odors. 
  1. Switch out the mechanical filter and/or clean the biological filter.
  2. If the water in your foggy pond has a green tint, you might want to add a clarifier to the filter to get rid of additional algae.

Verify that any oxygen-producing plants you have are alive and in good condition.

How to Clear Murky Clay Pond Water

Clean muddy ponds by eliminating suspended clay particles if the source of turbidity is chemical in origin. Try:

  • Gypsum (calcium sulfate)
  • Epsom salts or magnesium sulfate
  • Aluminum sulfate
  • Calcium carbonate
  • Aerating and/or agitating the water
  • Purchasing A pond rake.
  • Adding oxygenating plants
  • Boosting the beneficial bacteria.


You can clear murky ponds from your pond. You do not have to always leave your pond without attending to it. Ensure you use multiple techniques to clear your pond and keep it clean.

Thanks for visiting for this article. Check out our home page and search bar with hundreds of aquatic or marine life articles to choose from. Bye for now!

John Brandon

John has kept fish all his life (since he was about 5). He started with keeping guppies and fell in love with fish keeping almost straight away. That was 40 odd years ago. These days John still keeps fish and currently has two large tanks where he keeps many different types of fish such as Angelfish, Neon Tetras, Goldfish, Guppies and many more.