| We have 5 volunteer fish in our pond. At fist they looked like ordinary minnows. Now they are a little bigger, about 4-5 inches long. They are a dark black/purple color and are very difficult to see unless they transit in front of a bright Koi or the sun is shining directly overhead(and they come out of the shade). I figure they might have come along with the water hyacinth or water lettuce. Or maybe they came with some native bog plants we acquired here in WI.
One of the five is a more brown than purple and doesn't have as pointy of a nose. We've been trying like crazy to get a good picture of these fish. I'd like to know if they can over winter or if I need to catch these little guys soon.
Here's what we have so far. We'll keep trying to take a better picture.
http://intp-list.org/mysteryFish.JPG
Any ideas? | 
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