yep its a bubble wand. just hook it up to your air pump and stick it to the wall and kick it on. people at your local fish store should be able to help you out. only thing i would suggest is try to keep it a little bit away from your filter inlet or it will suck in the air and not work properly. just remember what ever you put in your tank as decoration, if you go with a oscar, it won't stay small forever, it will get big.