Phargon
Member
Sponges are the best static biomedia. If you have spare media and can fit it in without disrupting flow then adding it won't hurt. I wouldn't run carbon or purigen permanently. Floss is more of a maintenance choice, either no floss and low maintenance or with floss and you change/clean the floss weekly/fortnightly as required by your tank.
Thank you. Filter came with some plastic media in a bag and in a basket. Would you suggest replacing that with Seachem matrix or just add some matrix to the same basket.
Would floss and/or purigen fit above the final orange sponge without interfering with proper seal of the lid?
Thank you!