First things first, get yourself an aquarium, you find them used for pretty cheap, get a filter, and a heater, kits are pretty cheap as well from a place like big al's. get it setup, put your water in, and then you'll have to cycle your tank, which basically means you need to get rid of the bad stuff, and replace it with the good stuff, otherwise anything you put in there, will die within 2 weeks. Cycling your tank will take anywhere from 10 days to a month, your water will turn really cloudy, then clear up, thats when its safe to keep fish long term