Brightwell Granular Ferric Oxide - 1 Pound Bulk GFO Packs
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Granular Ferric Oxide for Phosphate Control in all Marine & Freshwater Aquaria - Sold in 1 pound bags
- Directly and efficiently removes reactive phosphate from aquarium water.
- Also removes silicate and phosphate-based organic material from aquarium water, often
resulting in improved water clarity (particularly in aquaria with heavy bioloads).
- Safe for use in all freshwater and marine aquaria, including planted and reef systems.