mosquito dunksseriouslyI got about 40 of them on ebay for $ 14 . Each complete one covers about 100 square feet of surface area for a month , and you can break them up for smaller areas . Kills off Mosquito , Black fly and Fungus Gnat larvae . Active ingredient is , which doesn ' t affect anything but these little bastards . Safe for pets , water plants , fish , humans , you name itWe ' ve got a shitload of tanks and three fountains plus the water chesnut pond and ZERO squigglies in any of them . FUCKING GODLY <| sep |> Customer support and the people that make the decisions are not always on the same page . Sounds like your method could come bite you in the ass later . Leaving this to chance is not a solution . <| sep |> Well this is big newsEdit looks like only physical btw