Cherax pulcher
... that the crayfish Cherax pulcher was popular in aquariums worldwide before even being recognized as a new species?
... that the <a href="./Crayfish" id="mwA9U" rel="mw:WikiLink" title="Crayfish">crayfish</a> <i id="mwA9Y"><b id="mwA9c"><a href="./Cherax_pulcher" id="mwA9g" rel="mw:WikiLink" title="Cherax pulcher">Cherax pulcher</a></b></i> <i id="mwA9k">(pictured)</i> was popular in aquariums worldwide before even being recognized as a new species?