Filter Media
Aluminum-oxide phosphate + silicate removal media for reef tanks.
Seachem PhosGuard TL;DR
Cost: $15-$35.
Aluminum-oxide phosphate + silicate removal media for reef tanks.
What it does + use case
Aluminum-oxide phosphate + silicate removal media for reef tanks.
Sizing for your tank
Match seachem phosguard 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: $15-$35. Plan annual replacement budget at 20-40% of initial cost.
How long does Seachem PhosGuard last?
Varies by media type - 1-3 months for chemical media, indefinite for ceramic biological media.