Oolitic Aragonite

Oolitic aragonite is a perfect substrate for marine and cichlid aquariums because it naturally buffers the pH. Unfortunately, many brands in the aquarium market claim to be aragonite but are actually just crushed limestone from the land-based mines. There are also some brands that do not have the correct approvals to harvest aragonite, meaning your tank may have illegally harvested substrate in it. Always double check your aragonite and its source. Ask companies where they source their aragonite. You’re missing out on the many benefits of aragonite by purchasing limestone that is falsely labeled, shorting yourself and shorting the environment.