[captflapdoodle]

Without knowing what it is, no one can tell you anything other than:Put it in a ? size tank with a ? size filter.Dechlorinate the water.Get a heater and thermometer to maintain water temperature between 75 and 80 degrees.Do a 25% water change every 3 weeks or so.Feed it a little bit of ? once a day.There may be more things that are crucial for the fish you have, but I can't help you because I don't know what it is.