I recently set the tank up and am having trouble setting it so the film on the surface is skimmed off through the weirs. I've adjusted the return pump so the water level in the tank is barely above the bottom of the weirs and set it a little higher. It'll skim the film for a few seconds then stops. I've removed everything from the overflow sections so there's nothing blocking or preventing water from draining properly. Anyone else run into the issue and get it fixed? Could it be that I need to turn the return pump up higher and raise the level of the water in the tank?
