We got some instructions on how to find copepods in the winter, and so we have gotten out an old fish tank and put small flower pots filled with Lake Champlain sediment from the mouth of Hoisington Brook -- some from beaver lodge #1 and some from the nearby sandbar -- and some lake water into the fish tank. It would work better if we had an air stone, which we hope to get soon. We don't see any copepods yet, but we're hoping.