Indygunworks,

I wish you the best of luck but you may not get much of a response as the pond type you want to build is nothing like 99.999 percent of the pond owners here. Virtually no one here uses biofilters for their ponds and instead use the natural biofiltration of much larger ponds.

What you want is more like a Koi pond. I think you might have better luck at a site like this:

http://www.koiphen.com/forums/


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.