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Koi & Catfish Can Cause Cloudy Water in My Large Pond? – Pond & Lake Q & A

Picture of Cloudy Pond Water.

Pond & Lake Q & A

Q: The water in my pond is very cloudy. I have some bass, bluegill and koi in the pond so I don’t want to use anything that will harm them. Any suggestions on how to clear this up? – Aaron of Illinois

A: The cloudiness of the water in your pond can come from many sources, such as heavy runoff from rain to constant sediments that fall into and around the pond. There is an element that causes cloudy water that many seem to overlook and it relates to a couple species of fish.

I’ve talked with some of you in the past and you’ve said one day the water looked clear and the next day it was cloudy. In quite a few cases the only factor that changed from one day to the next was adding either koi or catfish.

Koi Or Catfish Can Cause Cloudy Water?
Yes, these species of fish are bottom dwellers and love to stir up the bottom of the pond. Before adding these fish into your pond just understand that if you want clear water this may not be the best option. In a large pond or lake with catfish or koi it is almost impossible to clear up the water. The only way to do so would be to remove the catfish and koi altogether.

POND TALK: Do you have any koi or catfish in your large pond or lake?

The
cloudiness of the water in your pond can come from many sources, such
as heavy runoff from rain to constant sediments that fall into and
around  the pond. There is an element that causes cloudy water that
many seem to overlook and it relates to a couple species of fish.
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