Hi I recieved a 10in bubble curtain with my tank is it just for does it help the fish any, also should I get rid of my carbon and if so what do I replace it with Thanks . ps tank still cycling.

Anything disturbing the surface of the water is aerating the water, but there most certainly are more affective ways of doing so. If you don't have a bacteria hosting media in your filter, maybe replace the carbon with that (this would be anything like "Bio stars" or ceramic rings.)
opps sorry forgot to mention what to replace the carbon with! you could always use another section of sponge.Also, the bubble wall is putting oxygen into your tank by disturbing the surface of the water, which helps your fish breathe and allows for the growth and reproduction of beneficial bacteria in your filter.