Hello everyone. I'm new to this site so I thought I would stop in to say hi. I've been in the pond hobby for 26 years and bred Koi and Goldfish in 14 ponds in our yard. We also learned the hard way about filtration but now we've got it down pat and we've got a great diagram on how to make your own bio-filter if anyone is interested. This filter is easy to make and maintain and if built large enough for not only the size of your pond but the amount of fish in it, you will never again have suspended algae, hair algae or sick fish.
Yours Koily, Lorraine
Yours Koily, Lorraine