Best Algaecide For Fountains

as of March 28, 2023 9:20 pm
as of March 28, 2023 9:20 pm
as of March 28, 2023 9:20 pm
Last updated on March 28, 2023 9:20 pm

Choosing the Best Algaecide for Fountains: Keep Your Water Feature Clean and Clear!

When it comes to maintaining the beauty of your fountain, preventing algae growth is crucial. However, even with a regular cleaning schedule, it can be tough to stay on top of algae growth, especially during warmer months. Fortunately, algaecides can help you combat this issue effectively. But with so many products out there, how do you know which one to choose?

What is an algaecide?

An algaecide is a chemical solution specifically designed to kill and prevent the growth of algae in your fountain, pond, or other water features. It is an effective way to keep your water feature clear and avoid a green and murky appearance that can detract from its beauty.

Types of algaecides

There are two primary types of algaecides: copper-based and non-copper-based.

Types of Algaecides Description
Copper-based algaecides As the name suggests, these algaecides contain copper. Copper ions disrupt the cellular function of algae, which then prevents further growth. Copper-based products are usually fast-acting and can provide long-lasting results. However, these solutions can be toxic to fish, plants, and other wildlife.
Non-copper-based algaecides These algaecides typically rely on quaternary ammonium compounds (QACs) or poly(oxyethylene) (POE) alcohols as their active ingredients. These chemicals work by disrupting the cell walls of algae, causing them to die off. Unlike copper-based algaecides, non-copper-based products are generally safe for use with aquatic life.

Which one should you choose?

When deciding on the right algaecide for your fountain, consider these factors:

  • The type of algae: Some algaecides are more effective against certain types of algae than others. For example, copper-based algaecides may be better suited to targeting blue-green algae, while non-copper-based alternatives may be more effective at preventing the growth of string algae.
  • Aquatic life: If your fountain is home to fish, plants or other wildlife, you will want to choose a non-copper-based algaecide to avoid subjecting them to toxic copper ions.
  • Cost: Consider the cost of the algaecide and whether it is cost-effective for your specific needs and budget.
  • Size of your water feature: A small fountain may only require a small amount of algaecide, while a larger pond or water garden may require a larger quantity.
  • Applicator: Some algaecides require a specific applicator or a particular mixing ratio. Ensure that you are aware of these requirements before making your purchase.

How to use an algaecide

Always read the label instructions carefully before using any algaecide product. Each product has its own specific directions, and you must follow them to ensure your safety and achieve the best results. Consider these tips:

  • Use the correct dosage: Too much algaecide can be harmful to aquatic life, while too little may not be enough to kill the algae. Always measure the correct amount based on the size of your water feature.
  • Apply the algaecide: In most cases, you will need to dilute the algaecide in a bucket of water before pouring it evenly around your water feature.
  • Reapply as needed: You may need to reapply the algaecide one or more times to keep the algae under control, especially during the warmer months. Always refer to the product label to see how often the product should be reapplied.
  • Remove dead algae: After the algaecide does its job, remove the dead algae using a skimmer, net, or other removal tool.


An algaecide can be an excellent solution to help you maintain your fountain and prevent unsightly algae growth. Be sure to choose a product that is suitable for the type of algae you have and is safe for use with aquatic life. Always read the label directions and follow them carefully to ensure maximum effectiveness.

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