Filter Media
Lava Rock Bio Media
Cheap-and-effective lava rock as biological media in canister + sump chambers.
Lava Rock Bio Media TL;DR
Cost: $5-$20.
Cheap-and-effective lava rock as biological media in canister + sump chambers.
What it does + use case
Cheap-and-effective lava rock as biological media in canister + sump chambers.
Sizing for your tank
Match lava rock bio media 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.
Lava Rock Bio Media FAQ
How long does Lava Rock Bio Media last?
Varies by media type - 1-3 months for chemical media, indefinite for ceramic biological media.