So I have a little pond in my back yard..
Nitrates and Nitrites all show great scores..
I have koi, trout, catfish, sunfish, shiners, turtles, frogs, lilies, Hyacinth, Lotus, ducks, and just a whole system of nature.
Unfortunately for me, I have green water. The pond gets sun all day long. I've been researching filters. S&G. Bog. Anoxic. On and on. And really, the system is alive and well without any issue. No dead fish. Everyone is happy. I just wish I had clear water. Is this a fight worth fighting? There's no apparent stream. I believe it's spring or gravity fed.
Here are some pictures:
http://imgur.com/a/Bv4T6
Just looking for options or advice.
70'x130' -- ~500k gallons.
Thanks.
rich.