 and uh so like if you had like a little oh you know a little waterfall and little pond or bird feeder uh you know kids swimming pool or something where you wanted to have water in there but you didn't want mosquito larvae uh in there um you would just use these mosquito dunks and i think they last for about 30 days i've used them before containers that i use for kitchen water all the time sure and i use that for my plants outside