Threadfin butterflyfish, <i><a href="//commons.wikimedia.org/wiki/Chaetodon_auriga" title="Chaetodon auriga">Chaetodon auriga</a></i>, Location: Germany, Ulm, private aquarium
<a href="//commons.wikimedia.org/wiki/User:Holleday" title="User:Holleday">Holger Krisp</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>