Originally Posted by EvilBob22
slade1274
It is basically pulverized coral, which is what is below reefs naturally. It also gives all the buffering qualites of crushed coral but without all the big pieces. I thought I heard that the brown sand released silicates and/or metals but I can't be positive.
Thanks for trying to answer my question because I think it's the most critical in this thread. If you can understand the difference and impact, you know if you need to search for the "fizzy" sand. I'm still not satisfied with the answer yet.... if you put some of your salt mix in vinegar, you get fizz, so I imagine that could impact it too if it's procured from a salt water area. I understand the difference between pulverized coral and what benefit it may serve, but I just find it hard to believe that other sand is dangerous. After all, glass is made from sand and my aquarium isn't harmful to itself (I know a simplistic argument, but I'm sure you get the drift). I've got to believe there is a way for the non fizzy sand to be washed and cured properly to use in an aquarium, thus accomplishing a main goal of most folks here- making the investment in sand for the bottom and refugiums a bit easier. I would also think that non-coral based sands would actually stand up better. By that I mean break down over time requiring more to be added to the aquarium. Just my .02, feel free to give change if it wasn't worth that much. :thinking: