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fresh seafood
5600 readings per month
If this does not happen then the aquarium is not fully cycled or biological processes are not proceeding as they should
It significantly raises redox
Seachem Onyx Gravel 7kg CHILLER/FANS fresh seafoodOnyx 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. Although it is pre washed, because Onyx is a natural product, it
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