Seachem Onyx Sand Freshwater Substrate - 7.7lb Treatments & Quarantine Maximum aquarium size: Up to

Maximum aquarium size: Up to 3000 gallons depending on heat load

and reef aquariums

and reef keepers who want strong fluorescence

Useful for coral transitions: Built-in acclimation options are valuable when starting the aquarium

Tropica Part Number: 042 TC

Seachem Onyx Sand Freshwater Substrate - 7.7lb Treatments & Quarantine Maximum aquarium size: Up toOnyx Sand is a porous clay gravel for the natural planted aquarium. Being carbonate rich, Onyx Sand provides an advantage to any plants able to utilize bicarbonates. 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 and will not alter the pH of the water. Although pre washed, it may be