you should put it in a tank, ASAP, put it in a small bin, cleaned with mild soap and well rinsed until you can get the right materials. the correct materials would be a bowl or tank, vaccum, pebbles, distilled water, filters, food, and other stuff for it... some underwater plants, maybe. ask someone at the pet store about that kind of fish. anyway, try to get it out of a bag, but dont put tap water in... boil it for a verylong time, or get distilled water for it...good luck