Bird Pond advice??
My husband is starting to put in our loooooonnnnngg awaited "bird pond". It will basically be a small, low waterfall emptying into a slow stream and then into a larger very shallow (2" or so) pool that is about 5'x3'and pea gravel covering the entire bottom so they can bathe and play and splash. Any advice, thoughts, etc?? We did purchase an exterior UVB filter to really work on keeping the algae out so we don't have to do any chemiclas, etc.