How did you find these? I am obviously not searching correctly. And thank you.

I guess it is more for koi ponds and the like. But I figured fish are fish. If it helps koi, why not? Although most koi ponds are not acres and acres of water like a lot of people with farm ponds. They are usually lined as well....so they miss what comes from the soil naturally I guess....

We have a very small pond so we can implement things that may be cost prohibitive for those with acres of water. But if it isn't beneficial I won't waste the money and time.

If I ever remember to get that dang baby bottle at the grocery store I will be able to send my water off to Texas A&M.... Now that is time worthy.