Re: NANFA-L-- playground sand & Costa Rica

geoffrey kimber (
Mon, 23 May 2005 07:04:48 -0500

Well, if you're not sure, buy a bag, take a sample and add vinegar or
or muriatic (HCl) acid. If it fizzes, it's not OK.

You're a grownup, so you probably realize that muratic acid is dangerous.

Geoff kimber
/ This is the discussion list of the North American Native Fishes
/ Association (NANFA). Comments made on this list do not necessarily
/ reflect the beliefs or goals of NANFA. For more information about NANFA,
/ visit Please make sure all posts to nanfa-l are
/ consistent with the guidelines as per
/ To subscribe, unsubscribe, or get
/ help, visit the NANFA email list home page and archive at