Thanks guys. All I know is it is expensive! And in the past when I thought I got rid of the excess filatmentous algae in the trout pond, it was actually due to competition from chara that apparently outcompeted the filamentous algae later in the season as I didn't purchase it this year. Filamentous algae disappeared at the same time as last year without bacteria.
Just can't justify paying that much for my larger ponds for something that may or may not work, although I have bought small quantities of Bioclean recently from Stoney Creek and put it in a small holding pond where I am growing out small bluegills and feeding them heavily. But buying a bucket at a pop it too expensive for me.
BTW, I no longer purchase anything from that original company. I got a letter one day that said they though I owed them $160 dollars from a few years back. I did not, and found it odd I was asked to prove I did not after a few years had passed. They lost my business permanently.
