I've bought from premium aquatics before, very good stuff. I want more, but think I should wait another month until the temps are up for better shipping. I figure less die off, I get the insulated box with the heat pad, but still when its 30F at night.... anyhow. I've bought Manado, Bali Alor, & Fuji before but just saw this "Reef Rock"
"It is a clean calcium carbonate rock with great buffering ability,"
I was curious if anyone purchased any of this stuff before? I might try out a couple pounds of it when i order, if it doesn't look good maybe break it up for the sump?