For pics you can check lot sof pics in my photobucket, especially the goldfish.
The Estes' Marine Sand Ultra Reef is silica based with a polymer coat (so it won't even cause the brown algae problem so many cheapo sands can cause). It comes in black, white, beige (barely off white) and blue. I usually use and recommend either solid black or a half and half mix of black and white (with a painted black background).
It is just large enough to sink quickly when the fish mouth through it and is uniform so you don't get the compaction problem and other issues with so many other sands.
The Estes' Marine Sand Ultra Reef is silica based with a polymer coat (so it won't even cause the brown algae problem so many cheapo sands can cause). It comes in black, white, beige (barely off white) and blue. I usually use and recommend either solid black or a half and half mix of black and white (with a painted black background).
It is just large enough to sink quickly when the fish mouth through it and is uniform so you don't get the compaction problem and other issues with so many other sands.


) but other than that it was no big deal.