Cocoa Damselfish Add VideoAdd ImageDamselfish are territorial. The species shown in the show is called a Cocoa Damselfish. Section heading Write the first section of your page here. Section heading Write the second section of your page here. Retrieved from "http://octonauts.wikia.com/wiki/Damselfish?oldid=14661" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.