I really want to use Black Sand substrate in my new tank, but was told it isnt sold aragonite based and so it will not help with PH... Is this true does anyone know if I can get black aragonite based sand?
Google is still your friend
[ame=http://www.amazon.com/Bio-Active-Aragonite-Black-Beach/dp/B001N2PR7K]Amazon.com: Bio - Active "live" Aragonite Black Beach Reef Sand 20lb (2pc): Kitchen & Dining[/ame]