Not understanding camera layers

My goal is to use a static background image for a parallax scrolling game. I Googled around and found that I should use another camera and then set the layer behind the main camera. What I am seeing is nothing but the background color set by unity. I set my second camera same as my first, but I think the layering part is what I’m not understanding. Can someone explain camera layers to me like I’m 12?

Set your clear flags to none on your second camera.

That helped but my background is still moving with the main camera. I must have another problem somewhere.

Try setting a layer for the background from the drop down, then setting that layer un ticked on you main camera, then for your second camera that layer should be the only one ticked! That should help.