Thanks, Bob. The pond is four years old, and I do have waterlilies and a variegated rush growing nicely in the finger. I have a couple of cattails, which I keep down to about 3'x3', none of which are along the finger. So far, the chara is barely noticeable, so I will work to keep it to a low to moderate level. I will scout around for the eelgrass, a recommendation I hadn't heard before. Thanks again!
--Rick
