Are you looking for a unique way to make your aquarium really stand out? Onyx Sand is a great way to make a statement Pitch-black, sparkling sand, completely safe for fresh and salt water. This sand does have a slight buffering capacity, as well. All natural, no artificial coatings. Ideally suited to planted aquaria and most effective when used alone. However it may be mixed with other gravel to make a completely unique aquascape.
Gravel and substrate color may differ or vary due to your computer monitor's resolution.
I mixed the Onyx sand with the Onyx gravel and it provided an excellent consistency for my 29 gallon starter cichlid aquarium. It looks awesome and I'm very happy with the result. Both the Onyx sand and gravel will require a thorough rinsing but it's worth it. Another great product from Seachem.