I don't know if to call it pond or not but it's a small bowl/fountain/pond in my front garden. I've had guppies in there but they only lasted for 2 days. I wasn't sure if keeping a pond was a bit same as keeping a tank so please forgive me. So this fountain/pond is currently empty but it fills up when it rains here everyday so I need to have some Guppies or any mosquito laevae eating fish because mosquitoes are a big threat here in my country. So... I need advice and steps, do's and don'ts, etc... The fountain is around 3-4 gallons. My job is to put fish in it or else my parents might plan to get rid of it. Questions are, what do I have to do to avoid more fish deaths? Help anyone? Thanks!