A specialized pond filter is essential for maintaining water quality in koi ponds, keeping the water clear, toxin-free, and ideal for koi fish. This guide covers everything you need to know about pond filters for koi, from selecting the right type to understanding the benefits of mechanical, biological, and UV filtration. Find out how the right filter can reduce algae, balance nutrien... https://medium.com/@wwrwe4635/how-to-keep-your-koi-pond-clear-with-the-right-pond-filter-for-koi-b335e8032e17