Hello, new to the forum here, hope I can be of some help, as I hope to help also. I live in the Boston area, and have searched everywhere looking for some nice coarse sand for my potting mix. I always see this stuff in the cactus pots at the nurseries, but it's nowhere to be found for buying! I'm kinda picky, and don't like that playground sand type stuff. Could anyone please recommend an internet seller? Thanks a lot!