Little Giant, Leader and Power Flo Pumps are designed for continuous operation for table top displays, fish and Koi ponds (Power Flo pumps are not fish friendly), small and large statuary, ponds, fountains, waterfalls and streams. The Myers Floating Fountain Pump provide a rejuvenating effect to ponds as it aerates the water, eliminating stagnant water that is a breeding ground for mosquitoes and algae.