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>

Get matched with top fountain pros in Loup City, NE

Q: Should I leave water in my pond over the winter?

• <div><p>Even if you empty your pond before the winter, there&rsquo;s a good chance it will refill naturally. It&rsquo;s ideal in most cases, then, to leave water in your pond and winterize it instead. This method will prevent ice damage and protect wildlife. Plus, it&rsquo;ll lessen the steps required to reopen your pond in the spring.</p></div>

Q: How long does it take to fill a pond?

• <div><p>Small ponds can be drained and filled in about a day. Larger ponds will take two or three days for professional removal.</p></div>

Q: Will my fish stay alive in a frozen pond?

• <div><p>Yes, your fish should stay alive in a frozen pond if you winterize it properly. By ensuring your pond has enough oxygen, good water quality, and a hole to release harmful gases, your pond and fish have the best chance of staying alive and healthy. However, if you have tropical fish, they should be overwintered indoors.</p></div>

Q: How thick of a pond liner do I need?

• <div><p>In addition to length and width, pond liners also come in various thickness levels. Thickness is measured in mils, a unit of measurement equal to one-thousandth of an inch, with most pond liners ranging from 15 to 60 mils in thickness. The smaller the number, the thinner (and weaker) the liner. To prevent rips and tears, it&rsquo;s best to choose a pond liner that&rsquo;s at least 30 mils thick.</p></div>

Enter your ZIP and get matched with up to 5 pros

Need a pro for your fountain service project in Loup City, NE?

Select your specific project to find the pro for you.

Find Fountain pros in Loup City

No results for Fountain pro in

Try adjusting your search criteria.

Fountains questions, answered by experts

Even if you empty your pond before the winter, there’s a good chance it will refill naturally. It’s ideal in most cases, then, to leave water in your pond and winterize it instead. This method will prevent ice damage and protect wildlife. Plus, it’ll lessen the steps required to reopen your pond in the spring.

Small ponds can be drained and filled in about a day. Larger ponds will take two or three days for professional removal.

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.

Yes, your fish should stay alive in a frozen pond if you winterize it properly. By ensuring your pond has enough oxygen, good water quality, and a hole to release harmful gases, your pond and fish have the best chance of staying alive and healthy. However, if you have tropical fish, they should be overwintered indoors.

In addition to length and width, pond liners also come in various thickness levels. Thickness is measured in mils, a unit of measurement equal to one-thousandth of an inch, with most pond liners ranging from 15 to 60 mils in thickness. The smaller the number, the thinner (and weaker) the liner. To prevent rips and tears, it’s best to choose a pond liner that’s at least 30 mils thick.

The Loup City, NE 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

Angi
•
Oct 18, 2025Oct 18, 2025
How Much Does It Cost to Build a Pond? [2025 Data]
Discover how much it costs to build a pond. Learn about average prices, cost factors, and tips to plan your backyard pond project with confidence.
Rachel Hoffman
•
Oct 12, 2025Oct 12, 2025
How Much Does Pond Maintenance Cost? [2025 Data]
Maintaining your backyard pond keeps it clean and in good condition. Learn how much pond maintenance costs and what factors can affect the price.
Angi
•
Aug 18, 2025Aug 18, 2025
How Much Does It Cost to Install a Fountain in a Pond? [2025 Data]
Discover the cost to install a fountain in your pond, including average prices, key cost factors, and tips to save money on your pond fountain installation.
Rachel Hoffman
•
Aug 15, 2024Aug 15, 2024
Koi Pond Maintenance Tips for Homeowners
Maintaining a koi pond is not for the faint of heart, but the rewards are worth it to keep your koi fish happy and healthy.
Dan Simms
•
Aug 21, 2024Aug 21, 2024
Standard Koi Pond Sizes: What Koi Pond Size Do You Need?
The right koi pond size is crucial for both the health of the fish and your enjoyment of the pond. Use this guide to figure out the right size for you.
Angi
•
Jul 21, 2025Jul 21, 2025
How Much Does Pond Dredging Cost? [2025 Data]
Get a detailed breakdown of pond dredging costs, including average prices, cost factors, and tips to help homeowners budget for their pond maintenance project.