How deep should a koi pond be?

• <div><p>A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger <a href="https://www.angi.com/articles/koi-pond-sizes.htm">koi pond size</a> will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn <a href="https://www.angi.com/articles/how-build-pond.htm">how to build a pond in your backyard</a> to ensure it remains functional and aesthetically pleasing for a long time.</p></div>

How do I maintain my pond?

• <div><p>To maintain your pond, you’ll need to occasionally <a href="https://www.angi.com/articles/how-clean-your-backyard-koi-pond.htm">clean your backyard pond</a>, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.</p></div>

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Q: How much does pond maintenance cost?

• <div><p>The average <a href="https://www.angi.com/articles/pond-maintenance-cost.htm">pond maintenance cost</a> is $2,000. But how much you pay to take care of your pond depends on multiple factors, such as the size of the pond and whether fish live in it. Your area's climate also affects the overall maintenance cost, as you may need to winterize your pond to protect it and any aquatic life in it during the colder months. </p></div>

Q: What is the difference between a seep and a spring?

• <div><p>Seeps and springs form when groundwater reaches the earth&rsquo;s surface. The main differences between them are the amount of water and the flow rate. Seeps are smaller than springs and consist of water that&rsquo;s stagnant or flows slowly. Springs contain more water and flow more quickly.</p></div>

Q: Do natural pools attract pests like mosquitoes?

• <div><p>Natural swimming pools are designed to deter pests, including mosquitoes. While any body of water can potentially attract pests, the natural filtration system keeps the water clean and constantly moving. Mosquitoes specifically are attracted to standing water, so the continuously circulating water in a natural pool makes it an inhospitable environment for them.</p></div>

Q: How do I maintain my pond?

• <div><p>To maintain your pond, you&rsquo;ll need to occasionally <a href="https://www.angi.com/articles/how-clean-your-backyard-koi-pond.htm">clean your backyard pond</a>, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.</p></div>

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Verified Reviews for Fountain Service pros in Harmony, MN

*The Angi rating for Fountain Service companies in Harmony, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

*The HomeAdvisor rating for Fountain Service companies in Harmony, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

Last update on September 07, 2026

Reviewed in September 2026
Very efficient, had attention to details, went the extra mile to help me be more organized, was everything I wanted. Was wonderful!
Jenna's on Gold LLC
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Reviewed in March 2025
Everyone was very professional and welcoming. Both windows were installed in one single day.
Mad City Windows & Baths
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Reviewed in June 2024
Very considerate & careful when power washing around flowers & lawn ornaments. I have had many compliments on how sparkling clean my house looks now after the power washing!
Dry Creek Soft and Power washing LLC
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Reviewed in April 2023
Offered to help me out when I was far away.
Jerry Witt
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Reviewed in March 2023
Goldsmithâ s work on our bathroom project exceeded our expectations! He was professional and friendly. He helped us pick out the best materials and completed the work in just two days! He left our house clean and was respectful of our family as we were at home while he worked. We couldnâ t...
Goldsmith Remodel And Design LLC
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Reviewed in July 2022
He did a great job and ended up uncovering needed repairs on a visit for an estimate. He was able to trouble shoot all issues with my irrigation system and took the time to correct deficiencies in my system and also quoted me a more efficient system for my watering needs. Will be using him in...
Aries irrigation specialist
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Reviewed in June 2022
Professional, prompt and reasonably priced.
Aqua Systems of Nebraska
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Reviewed in February 2022
I wish I had gotten another estimate as I think I paid too much for this project.
Custom Plumbing of Arizona, LLC
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Reviewed in September 2021
Excellent. He was very professional, and carefully explained everything to us. We feel he did a thorough job of inspecting our home .
American Waterworks
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Reviewed in June 2021
We were looking to have some ceiling tiles in our home tested for asbestos prior to some remodeling. After doing some research on home advisor, I found JMAX and John was able to come out the next day. He was friendly, informative and answered all my questions honestly. The results came back a...
JMAX Specialty Contracting, Inc.
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Fountains questions, answered by experts

The average pond maintenance cost is $2,000. But how much you pay to take care of your pond depends on multiple factors, such as the size of the pond and whether fish live in it. Your area's climate also affects the overall maintenance cost, as you may need to winterize your pond to protect it and any aquatic life in it during the colder months.

Seeps and springs form when groundwater reaches the earth’s surface. The main differences between them are the amount of water and the flow rate. Seeps are smaller than springs and consist of water that’s stagnant or flows slowly. Springs contain more water and flow more quickly.

Natural swimming pools are designed to deter pests, including mosquitoes. While any body of water can potentially attract pests, the natural filtration system keeps the water clean and constantly moving. Mosquitoes specifically are attracted to standing water, so the continuously circulating water in a natural pool makes it an inhospitable environment for them.

A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger koi pond size will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn how to build a pond in your backyard to ensure it remains functional and aesthetically pleasing for a long time.

To maintain your pond, you’ll need to occasionally clean your backyard pond, especially if you have koi fish. Test the water twice a week to make sure your fish have everything they need and always remove visible debris.

The Harmony, MN homeowners’ guide to fountain services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

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May 3, 2026May 3, 2026
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Regular outdoor fountain maintenance will keep your water feature looking and working great. Follow these tips to learn how.
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24 Water Feature Ideas for Your Backyard
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Jul 9, 2026Jul 9, 2026
5 Water Feature Design Styles to Incorporate Into Your Home
Dive into the details of the different kinds of backyard water features, including fountains, birdbaths, waterfalls, pools, ponds, streams, and spouts.