Mamas if you got trash cans or anything outside that holds water after rainfall please dump it out far away from your house or throw it out as I just learned from my landlord who came by and told me that those little swimmers are mosquitos and he was looking out for mine and the baby safety because of the Zika virus that's going around. Ugh glad he told me now I really want hubby to get it away from the house ASAP!!!!