Seachem Laboratories Onyx Sand Planted Aquarium Substrate 1ea/7.7 lb Cat Supplements Ear & Eyes Brain function support with fish

Brain function support with fish oil and choline

• Designed for the needs of your cat: Exercise

For a softer

Only the good stuff—no grains

Seachem Laboratories Onyx Sand Planted Aquarium Substrate 1ea/7.7 lb Cat Supplements Ear & Eyes Brain function support with fishOnyx 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