Filter Media
Pre-Filter Foam
Coarse-foam pre-filter that catches debris before main media.
Pre-Filter Foam TL;DR
Cost: $5-$20.
Coarse-foam pre-filter that catches debris before main media.
What it does + use case
Coarse-foam pre-filter that catches debris before main media.
Sizing for your tank
Match pre-filter foam to your filter or tank size. Use manufacturer dose-rate or volume rating.
Setup + maintenance
Follow manufacturer instructions exactly. Replace media when manufacturer-rated capacity expires (varies by media type).
Common mistakes
Replacing all media at once (destroys bio-filter). Skipping pre-rinse. Buying based on price alone.
Cost expectations
Cost: $5-$20. Plan annual replacement budget at 20-40% of initial cost.
Pre-Filter Foam FAQ
How long does Pre-Filter Foam last?
Varies by media type - 1-3 months for chemical media, indefinite for ceramic biological media.