Planted Tank Enthusiast
Join Date: Apr 2012
Location: Edmonton, Canada
I had a tetra whisper 20. I kept the backbone for the floss bag as a divider, but I probably didn't need it. I used ceramic rings and small lava rock in the HOB.
oh wait, the divider was to keep the bag of purigen seperate from the floss, and to keep the floss in the filter.