Greg,
Thank you for contacting us. You could go with the same pump or what I would recommend is going with the HY-2000 pump. It is a more powerful pump and it comes with a 3-year warranty. The only drawback is that with the HY2000 pump, you need an adapter (which we also sell) and the pump would sit next to the skimmer and not under.
http://www.coralvue.com/reef-octopus-bubble-blaster-2000-skimmer-pump
The pump is backordered right now but we will be getting a shipment later this week. I can let you know when it becomes available so you can purchase it.
Let me know,