I have tried to hide the tubing its next to impossible to get the air stone to stay down if it's not under my wood. I was thinking about getting the black tubing. Maybe it will work. I don't want to take or out I really like it and I like the bubbles where they are to fill my empty gap. If it comes down to it, I will replace the airstone with more vals. But that will take time because we bought ALL of the vals from our lfs.