Just say down from a thorough cleaning and water change. I received my new Jabeo rw-8 last week some time and finally had a day off to install it. Now I'm watching the new pump push some water =) it is set on the wave setting at the slowest speed and flow is way better then the two hydor 1050s and one 750 I had in there. Huge upgrade for me today, it's nice eliminating equipment from the DT. Love it.