Reef Sand needed HELP

[NaClH2oTANK]

Hi
Im setting up a 115 gallon reef tank in the bio class at the high school I work at.

I need to get sand for it and dont feel like paying store prices.
the school bought some stuff but not sand.

I know everyone says southdown from Home Depot,
but lets be realistic.
they dont have it.
any reliable suggestions?

please let me know.

Also, I will be asking for some frag donations in a couple of months.
lol

thanks in advance
Frank
[email protected]