5 what would happen if a fishmen ate a df they'd still be able to breath under water but could they still swim March 6, 2011 by Chad from Accounting Im just wondering what anybody thinks about what would happen if a fishmen ate a devil fruit. Read more > Retrieved from "http://onepiece.wikia.com/wiki/User_blog:Chad_from_Accounting" 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.