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How to Keep Algae Out Of Fountains in Easy 6 Steps

Fountains add a soothing echo and water flow to your home, forming a pleasant spot.

Algae growth in a lawn fountain, on either hand, turns that serene refuge into a messy upkeep nightmare.

The algae can clog the fountain’s filter over time. Also, it’s a nuisance to clean these every time!

How to keep algae out of fountains?

A fountain with green algae looks filthy old. Hence to stop algae growth, use distilled water in your fountain as filler. Clean the fountain regularly. Or try avoiding sunlight. You can also use algae control products and algaecide to slow its growth. 

To fix the algae growth properly, you’ll need to learn the details. That’s why we have explained each cause and its solution.

As a result, we hope you’ll stick around!

Why Algae Grows

Why do your fountain’s algae bloom? It’s a sunlight and water mixture. Algae feed on a variety of small particles, debris, and residues in the water.

The algae can grow with the relation of light. As a result, if your fountain is exposed to hours of direct sunlight each day, algae growth is more likely.

There are common algaecides available in the market that can be used. But they may contain components that are hazardous to animals such as canines, fish, and birds. Some even use liquid CO2 to kill algae

If you have pets, a more careful technique to keep algae out of your exterior water fountain is preferred.

Some Things You Can Do to Stop Algae Growth Are

Algal blooms are a common issue for any type of fountain. Most of the time, it appears to be harmless, but this typically green gob is quite tough

Even when algae prevention products are used, it regrows every couple of weeks or so. 

Plus it makes stone outdoor fountain designs ugly. Algae can also make the fountain area wet and affect the water’s smell.

These tricks will help you to prevent growing algae-

Use Distilled Water 

The water in your fountain could be mineral-rich, Enough to boost the growth of algae. Using mineral-rich water also may cause mineral deposits to form in the fountain and pump. 

While filling the distilled water, make sure you do not put any product like flourish excel in the water. It will do the opposite of getting rid of the algae.

Furthermore, evaporating water leaves a higher concentration of minerals behind, which can lead to an algae bloom. 

To avoid this from occurring, use distilled or chlorinated water. Also, remember to top up all the water and replace traditional it every six months.

Every 1 to 3 Months, Thoroughly Clean the Fountain

Deep cleaning your fountain is a critical step in preventing algae growth. 

To begin, completely empty the fountain, turn it off, and put the pump in a bucket of water. Then, using a sponge and mild soap, remove any blockage inside the fountain. 

Clean the fountain pump of wreckage and rinse it with a flowing stream before replacing it with the other fountain extras you removed earlier. If your fountain is near a pool, keep it clean.

To ensure thorough cleaning of your pool, consider using an industrial robot pool cleaner. Which will save you time and energy.

Keep The Fountain Shaded 

A lot of sunlight also encourages quick algae blooms in the water. Set up your fountain in a shady spot if possible.

If not, you can place a cover, such as an umbrella, over the fountain to reduce the amount of sunlight it receives. 

Aquatic dye, which can turn the water blue, can also be used as an alternative.

This is commonly used in hotel fountains to reduce the amount of sunlight that really can penetrate the water, thereby removing a big contributor to algae growth.

Add Algae-Controlling Items to the Water

Algae-prevention products should be added to your fountain immediately after installation to prevent algae growth. 

If you were unable to do so the first time, you also can add it to the water after thoroughly cleaning the fountain. 

It has initially been stated that some items can be harmful to animal safety. But there are also items that are beneficial to animals.

An algaecide, that has no metal component in it, is an option if your fountain. They are built of light materials. And helpful for white marble or porcelain-made fountains. As it is less prone to staining than other fabrics.

There are some products that you can use to control algal bloom-

Product 1
Product 2

Use these products carefully and make sure to keep away from your pets and children!

Preventive Treatments Should Be Added to the Water

Algae-free water in your fountain can be maintained for a long time. Add some bleach to the water. 

That’s only perfect if you do not keep fish in the fountain’s basin. Some sources believe the use of apple cider vinegar  is an all-natural alternative to bleach.

Also, barley extract is a well-known anti-algae treatment. Bleach can harm plants, other wildlife birds, and can be poisonous. So read the product labels carefully before adding them to your fountain. 

The given ideas will help you to prevent algae from your garden.


Question: Do copper pennies keep algae in the fountain?

Answer: Copper pennies in a birdbath may assist you in resolving algae. Because copper has biostatic properties, it is incompatible with algae.

Question: Is it safe to put bleach in my garden fountain?

Answer: When algae grows on a fountain, it can jam the pump and cause it to overheat, resulting in the fountain’s failure. As a disinfectant or algaecide, do not use chlorine or bleach at all.

Question: How do you clean algae out of a pond?

Answer: Remove the algae from your pond with a net. It is the quickest way to remove algae from a pond. like simply lifting it up and throwing it off. To get rid of algae from your pond, use a scraper or an algae net to scrape the surface.


That’s all we had to say about how to keep algae out of fountains.

If the problem persists after troubleshooting, consult a professional. Use chemical products with precautions.

Best wishes for resolving the issue! See you next time!