Seachem – Onyx Gravel


SKU: 000116370509 Category:

Onyx Gravel 7kg

  • Premium natural substrate for the aquarium
  • Ideal for Tanganyikan Cichlids
  • Rich in carbonates

Onyx™ is a specially fracted natural substrate for the aquarium. Onyx™ is suitable for any marine or freshwater environments and is ideally suited for Cichlid environments. 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™. Onyx™ is not chemically coated or treated but does have a slight buffering capacity.


100ml, 250ml, 50ml


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