I have a lifegard aquatics AIO tank and I’m absolutely baffled right now. The water level in the tank is above the teeth of the overflow but not actually falling through. How is this possible? Is the water not pushing through the teeth with enough force to break the water tension?? Only reason why I could see that as a possibility is because I have a light mount that dips into the water about an inch from the overflow. But it only stretches out about 1/2”