I am looking to upgrade my skimmer soon and was looking for something reasonable in price and works very well. I currently have an ETSS reef devil that has been working pretty good so far, but I have noticed it is not skimming as much out of the tank as it used to and my parameters are starting to show it. My current tank is a 140 display and a 40 gal sump, but total volume is about 165 gallons. any help would be great. thanks RC