Marine Pure/Filtration & Skimming
Block 8 x 8 x 4 (store use)
Block 8 x 8 x 4 (store use)
SKU: SKU:BLOCKSU
UPC: SWDG
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8x8x4" Block
Ammonia, Nitrite and Nitrate Removal
Primarily designed to provide deep anaerobic zones for de-nitrification in passive systems.
Live rock substitute-popular among reef hobbyists as a substitute for live rock because it reduces nitrates more efficiently without harming the environment.
Use in sumps, stacked in extra-large filters.
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