>>>>>> How about those "mosquito dunks" that stores sell for small ponds. The claim is they keep larvae from developing but don't harm birds, fish, frogs, etc? George <<<<<<<< OK, George, what's a mosquito dunk and in which kind of store would I find it...? Penny, NY ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.