Seachem Onyx Gravel 7kg Global recommendation Boosts Root Development: Delivers nutrients

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

adjustable flow

reduce any risk to your fish/shrimp and save you plenty of money (as you won't need to purchase CO2 bottles as often)

Use at start-up and whenever adding or replacing water

Mano Base enables optimal plant growth and reduces algae blooms

Seachem Onyx Gravel 7kg Global recommendation Boosts Root Development: Delivers nutrientsOnyx 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