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

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Last update on April 15, 2026

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Fountains questions, answered by experts

Deep clean your koi pond at least once a year to keep your fish healthy and your pond in good shape. Water testing, debris removal, and partial water changes should be performed weekly. Seasonal professional service will ensure everything is clean and functioning properly.

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, natural pools can get algae since they use the same filtration processes as lakes or streams. However, you can reduce the risk of algae by adding more algae-fighting plants and not installing your natural swimming pool in direct sunlight, as it promotes algae growth.

You have several options for your pond by getting your yard ready for the winter. You can winterize your koi pond by ensuring it’s at least 5 feet deep so it doesn’t freeze completely, installing a pond heater or aerator and having it run at all times, and installing a deicer if temperatures are dangerously low for an extended period. You can also choose to shut down your pond for the winter by removing all the wildlife in it and bringing it indoors, cleaning out the filter and pump, and then covering the pond with a tarp.

Most pond installations take 3-10 days, depending on excavation, liner placement, and filtration setup.

The Nicollet, MN homeowners’ guide to fountain services

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

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