Seachem Onyx Gravel Barbs It is also effective for

It is also effective for some internal bacterial infections

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

AKA Blueface Tilefish

Flexibility thanks to the magnetic holder

You won't find any higher quality pods

Seachem Onyx Gravel Barbs It is also effective forPremium 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