You want the water to flow through the soft side of our Polishing pad first. The side of the felt pad which feels rough to the touch has been heat treated to keep fibers from migrating or pilling after cleaning.
What are you looking for?
Get help straight from the team at Aquatic Experts ...
Should the water pass through the more dense side first? in other words on a hob filter, which side of the polishing pad should be facing down?
Aquarium Filter Pads
Should the water pass through the more dense side first? in other words on a hob filter, which side of the polishing pad should be facing down?
Last updated on 03 Nov, 2025