I know there was some interest in the past on this subject (benthics and remoras). This display just has one small remora. It will cling to both the viewing window in front of the filter returns as well as several of the bamboo sharks (swimming and resting) in the display. This happens to be one of my larger male Brown bandeds, but there are two Arabians in there as well. The bubbles are due to me refilling the display after a large water change. The air that gets pulled in as the water drops has to be displaced back out of several hundred feet of piping. There normally aren't bubbles like this.
[video=youtube;Kfxo2TIE0RM]https://www.youtube.com/watch?v=Kfxo2TIE0RM[/video]
[video=youtube;Kfxo2TIE0RM]https://www.youtube.com/watch?v=Kfxo2TIE0RM[/video]