Red Sea Reef Spec Carbon Filter Media
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$29.99at WalmartChecked 2 h ago
Compared across 3 stores. Prices are checked against each store and labelled with when.
Compared across 3 stores. Prices are checked against each store and labelled with when.
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In stockSold by Thunder Reef AquaticsReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $29.99 on Nov 12 at Amazon. Tracked across 2 stores since Nov 12.
Red Sea REEF-SPEC Activated Carbon — 1000g is a premium, ultra-low-phosphate carbon formulated specifically for reef aquariums. It removes dissolved organics, yellowing compounds, odors, and medication residues without leaching phosphate back into your system — a common problem with lower-grade carbons. The 1000g size is the best value for larger systems or regular ongoing use.
Smaller setup? See the REEF-SPEC Carbon 100g or REEF-SPEC Carbon 500g. Run it in the Red Sea Reefer Media Cup for clean, drop-in installation in a REEFER sump.
Browse more filter media in our Filter Media & Cartridges collection.
Features
Reef-safe: ultra-low phosphate leaching
Removes dissolved organics, yellowing compounds, odors, and medication residues
Highly porous pellet structure — large active surface area
Optimized for reef aquariums (REEF-SPEC formula)
1000g — best value for larger systems or regular ongoing use
Specifications
Brand
Red Sea
Product
REEF-SPEC Activated Carbon
Size
1000 g (1 kg)
Suitable For
Saltwater / Reef
Condition
New
Usage
Use 100g per 100 L (26 US gal) of system water
Replace every 4–6 weeks for best performance
Rinse with fresh RO/DI water before first use
