Originally Posted by Jadinop
Remove the Biocube filter and just go with the floss on top of the media basket. Clean or change it often.
The BioCube filter isn't a very good filter anyway so removing it won't be a big deal. I haven't used one in three years. I will sometimes put some floss back there if I've been messing with the tank and want to catch what I've stirred up, but most of the time nothing is required.
Regular water changes, feeding and stocking control, as well as a good protein skimmer do wonders on a BioCube.