Built the rock structure and move all the livestock over from the 75 gallon reef. Started at 10 AM Saturday morning and add the last of the live stock at 11 PM. Added the wave pumps, Return Pump and BRS dual reactor. All equipment was clean and all media was replaced first. I had 160 gallons of new saltwater made before hand from my BRS 6 stage water saver 150 gpd RODI unit (so glade I bought this item) then used about 60 - 70 gallons from the 75 gallon reef.