The spray bar is attached to the overflow from my refugium that is fed by a mag 7 pump inside my display. The display is on my kitchen coumter and the refugium is above the kitchen cabinets and both are visable from kitchen and living room.Display is a 46gallon bow and refugium is a 38 gallon with double biowheel and an Esshoppes 100 gl skimmer.I did add some sponges to the spray bar from my subcurrent uv sterilzer that are loose fitting so they catch the bubbles and not block the plankton and good stuff from the refugium. The bubbles are significantly reduced but so is the flow to the surface water.