Seachem Onyx Gravel Barbs Flexibility thanks to the magnetic

Flexibility thanks to the magnetic holder

contains 100 ml bottles of Prime

Naturally high in omega-3 & omega-6 fatty acids

Its vibrant colors shimmer and dance in the water

Seachem Onyx Gravel Barbs Flexibility thanks to the magneticPremium 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