How many more invasive species will it take? The news this week isn't good. Spiny waterflea, an invasive crustacean the size of a pinhead, is in the Champlain Canal and now Lake George. This small zooplankton with a big impact is headed towards Lake Champlain, the Hudson River and any number of waters in the Adirondacks. It was first detected in New York's inland waterways in Great Sacandaga Lake in 2008, Peck's Lake in 2009 and Sacandaga Lake in 2010. How many more waters need to be infected before we learn that our actions do make a difference - sometimes for the better, some times for the worse. The clock is ticking. Preventing the spread of invasive species must become part of our recreation routine.