Category
Gravel & Substrate
Store
eBay
Brand
Seachem
Seachem Onyx Sand. Seachem Onyx Gravel. Onyx is NOT suitable for a soft water setup! Onyx is a specially fracted natural substrate for the aquarium. Onyx is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels or sands such as Onyx Sand.
22.74 GBP
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