Seachem Onyx Sand 15.4lb Marina Supplied in a state of

Supplied in a state of suspended animation for maximum longevity

Good planting weight

non-toxic and non-pathogenic

- Instruction Manual

Seachem Onyx Sand 15.4lb Marina Supplied in a state ofPremium natural sand for the planted aquarium Good for the life of the aquarium Supports optimal KH levels for freshwater planted aquariums Rich in carbonates Overview Onyx Sand is a naturally dark gray sand that perfectly complements and enhances the appearance of any aquarium. It supports optimal KH levels for freshwater planted aquariums. Although ideally suited to planted aquaria, it may be used in any aquarium environment. Onyx Sand is most