The Koi Pond

Introduction A koi pond is a beautiful addition to any backyard, but keeping it clean and clear can be a challenge. One of the most important aspects of pond maintenance is filtration, and when it comes to koi ponds, an undergravel filter is one of the best options available. In this ultimate guide, we’ll take an in-depth look at undergravel filters for koi ponds, how they work, their advantages and disadvantages, and how to install and maintain one to ensure crystal clear water for your fish. … »