Changing substrate, which kind of sand should I get?

[kellieandjason]

Hi!
I have decided to change my substrate. I have some crushed coral and something else I can't remember (It's some kind of aragonite, but it is smaller than the crushed coral but quite a bit larger than the sugar sized sand)
Anyhow I can't get my nitrates down, so I'm gonna switch.
my husband and I would both like black (I know it's a little harder to keep clean) but I am not sure which kind to get? THe tahitian moon sand looks cool but it says it is not argonite based and the argonalive is just god awfully priced and not totally black.
Is there another kind? If you suggest the tahitian moon sand do I need to rinse before adding?
Thanks for any help or comments
Kellie

 

[yaksplat]

See if you can find some Southdown tropical playsand at your local Home Depot. I just happened to run across some yesterday. I bought 200 pounds of it for $26.

Jim

 

[cmor1701d]

Southdown is white. You won't find black aragonite. "Aragonite can be white or colorless or with usually subdued shades of red, yellow, orange, brown, green and even blue."

 

[kellieandjason]

Thanks, I didn't know that you can't get black aragonite....