Seachem Onyx Sand Planted Aquarium Substrate 7.7 lb

Seachem Onyx Sand Planted Aquarium Substrate 7.7 lb

Marsoni

M251S

$15.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Seachem Onyx Sand Planted Aquarium Substrate 7.7 lbOnyx 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 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

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Reviewed in the United States on May 10, 2025