I'm looking for a San Antonio source for Mrs. Wages or Ball pickling lime, dowflake, and magflake. The south side HEB where I used to buy pickling lime no longer carries it. I know Gary once did a group order for dowflake, which leads me to believe none of the local home depot stores carry it. Has anybody found any of these products locally?

I did find dupont "calcium hardness increaser" which appears to be 97% (or something like that) calcium chloride, and is probably reef safe...as they list the other ingredients as harmless. But it has not been independently tested for reef safeness, so I'd prefer to find the dowflake.