For real?! Interesting. I looked up some pictures of reef tanks with black sand vs white sand and liked the look of the black. I also read posts by people with black sand and it was fine. I never particularly searched for bad news with black sand but didn't stumble upon any, either. What kind of heavy metals should I look for? And I suppose I would need additional test kits for them? Also, my other two corals seem to be doing fine.
I don’t know of anyone that has a long term successful system with black sand...
If there are any, please prove me wrong..