This is a nice pump that keeps going and going! I have a forty gallon pollywog pond for tree frogs. I have the pump sitting on a large rock on one end of the pond. The pump came with a good selection of attachments for how you want the water to flow out. I made the holes bigger on an attachment so that the water would flow smaller to fit my pond's needs. It's nice to have a little water circulation and added o2 in the water. The pollywogs are happy and I'm happy!