Monks, Neale (2009). ”Assassin Snails and Sulawesi Elephant Snails: Keeping Clea and Tylomelania in the aquarium”. Conscientious Aquarist Magazine 6 (4). http://www.wetwebmedia.com/ca/volume_6/volume_6_4/clea.html. Läst 11 mars 2014. ”Clea are whelks, most of which live in the sea. Like their marine relatives, Clea are opportunistic carnivores that feed on both live prey and carrion. Among the prey taken are snails, and it is this that has made them popular with fishkeepers. Clea stay partially hidden under the sediment, and if a snail slides past, then quickly (by snail standards) jump into action, chasing their prey and eventually subduing it.”.