Danner MFG's Pondmaster Line has been expanded to include the ProLine Hy-Drive Series Pumps. These energy efficent pumps are an excellent choice for aquariums. They can be used both in-line and submerged. We are currently using them on our breeding systems and are very happy with the results. These pumps are especially appreciated in large systems that require high flow rates as the energy consumption is very low. One of the largest expenses in running our ray breeding systems is electical power consumption. It is equal to what we spend in food. These pumps can save you a lot of money on your electric bill.