driver3260 Posted October 14, 2020 Has anyone used a external filter with the fluval 13.5 and kept the sump running? Quote Share this post Link to post
jservedio Posted October 14, 2020 You can do that, but the bigger question is why would you want to? The whole point of an AIO is that you don't need a bunch of crap hanging on the outside or hoses running everywhere. 2 Quote Share this post Link to post