Cycling my tank...

only one company makes Bio-Spira, and thats Marineland. Not all shops will carry it because it is in high demand and it also requires a little bit of refrigerating to keep the bacteria alive for prolonged periods of time. Use Marineland's store locator to see which Pet store or LFS will carry Marineland products, although it won't be a definate on Bio-Spira, its better than nothing. http://www.marineland.com/

Also, Bio-Spira works better if the water is conditioned with either Marineland's Bio-Safe or Seachem's Prime. A lot of water conditioners these days contain detoxifying ammonia properties that might affect how Bio-Spira consumes regular ammonia. And at $15 for a 1oz packet, its quite expensive.
 
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