Premium natural substrate for the aquarium
Ideal for Tanganyikan Cichlids
Rich in carbonates
Seachem Onyx is a specially fracted natural substrate for the aquarium. Seachem 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.
To determine the number of bags required for your aquarium, please note that each bag (7 kg, 15.4 lbs) occupies a volume of approximately 7,000 cm3 (425 cu. in.).Directions
TIPS: When adding water to aquarium, fill slowly to avoid disturbing Onyx™ bed. Place a bowl in the aquarium and add water directly to the bowl, allowing water to overflow softly on to the gravel bed. Initial cloudiness is normal. To remove cloudiness, use mechanical filtration (such as filter floss). Clarity™ clearing.