Since you have it, use it. Either clean it on a regular basis. or even better yet take out all the filters and basically use it for flow. Then when you need to filter for something specific add what you need , say carbon what ever, you have a filter that you can just drop the media in. Using the LR
is also a great idea.
Since I haven't moved to the sump side of the house yet, I have 2 cans running with inline heaters on both. Usually there is nothing in them at all unless I need it for something. Then I pop it in, let it do it's job and take it back out. I have enough LR
in the tank so I don't bother w/ LR