Laguna Air Pump Kit Provides A Variety Of Very Practical Benefits For Ponds With Fish All Year Round. In Summer Pumping Oxygen Into Your Fish Pond Is Crucial For Their Health Particularly In A Densely-Stocked Pond And During Very Hot Periods When Oxygen Levels Decline. Fresh Oxygen Contributes To A Clean And Clear Aquatic Ecosystem Promotes Healthy Aquatic Life And Helps Break Down Fish Waste. I