On a nightdive in Lembeh.  These guys look like they are floating midair.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/26694022@N00">Chika Watanabe</a> from Los Altos, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/26694022@N00/308652297/">Banggai Cardinalfish</a>