Dewayne,
Funny. If you go to the Biotamax.com site, it is priced at $7.88. If however, you go to the biggertomatoes.com site, it is priced at $5.85:
http://biggertomatoes.com/GrowBigger.html
Still a good deal at the $7.88 price, but why not save a couple of Bucks.
Here is the direct link to the MycoGrow. Scroll down the page and click on the 1 ounce SOLUBLE at $5.95
http://www.fungi.com/mycogrow/index.html
Raybo