Do you need mechanical filtration (filter floss, roller, etc) on each side of the drains going into the back sump for the AIO?
I’d like to get one roller to be on the back left to minimize the work of replacing filter floss or washing socks. Do I need to get one for each side? Or is just one enough? If it is enough, do I need floss on the back right?
I’d like to get one roller to be on the back left to minimize the work of replacing filter floss or washing socks. Do I need to get one for each side? Or is just one enough? If it is enough, do I need floss on the back right?

