Seachem Onyx Gravel 7kg Global recommendation carbonate hardness

carbonate hardness

Boosts Root Development: Delivers nutrients directly to plant roots for strong growth

adjustable flow

this helps create a lovely warm and sunny feel to the aquarium

To maintain a healthy aquarium with conditions close to nature regular checks and adaptions of the water values are important

Seachem Onyx Gravel 7kg Global recommendation carbonate hardnessOnyx 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. Set up Although it is pre washed, because Onyx is a natural