Skip to product information
1 of 1

Seachem

Seachem Onyx Sand 3.5kg

Seachem Onyx Sand 3.5kg

SKU:64225

Out of stock

Regular price $21.99 CAD
Regular price Sale price $21.99 CAD
Sale Sold out
Onyx Sand is a naturally dark gray sand that perfectly complements and enhances the appearance of any aquarium. It provides not only iron and other minerals but supports optimal KH levels for freshwater planted aquariums. Being carbonate rich, Onyx Sand provides an advantage to any plants able to utilize bicarbonates. Although ideally suited to planted aquaria, it may be used in any aquarium environment. Onyx Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Onyx Sand is not chemically coated or treated but does have a slight buffering capacity that may raise pH by 0.1 - 0.5 pH units (depending on source water characteristics). Onyx Sand is good for the life of the aquarium and need not be replaced.
View full details