Three catfish of the <i><a href="//commons.wikimedia.org/wiki/Category:Corydoras" title="Category:Corydoras">Corydoras</a></i> genus.
<a href="//commons.wikimedia.org/wiki/User:Soulkeeper" title="User:Soulkeeper">User:Soulkeeper</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>