Liked your site, tanks, and pond. You know, about the time you get the
pond area all done and *really* looking good, your pond isn't going to
be as large as you want. I've been there - done that, redid it, and
done it again. My age (or wife - flip a coin) is stopping me from
changing it again...
With a DSB of only 2" of sand, I wouldn't think it's deep enough to
change the nitrAte to gas (?). My understanding is that you need at
least 4 to 6"s, and then if the water flows across it to fast, it won't
work............. Frank