Hello,

I bought a bag of caribsea black sand Hawaiian for my nano project and I wanted to show you what it look like, I haven't seen anyone making a comparison like this so I hope this will give you an idea.

I'm currently waiting for a ICP test and once I receive it I will publish the results with you :)

Yeah, good point, in the inverse when your room is dark and your light is blue it pop the corals fluorescence

Sort of, its a high contrast material so the colours will pop more. Like my black backed and barebottom, photographs looked like it was endless but the corals stood out fantastically

Good point ,my back is black.