[mikellini]

Originally Posted by Reef Pilot

Well, you can be hung up on my use of the word guaranteed, if you like. I said that because I have used it in person, and have seen how it works. And all the cases I have read about where it didn't work, involved incorrect usage, or at least lacked clear evidence of correct usage. And yes, that included chemists. The good news, is that many others that did use it correctly were also successful with preventing cyano.

People are free to believe what they want and manage their reefs the way they want. That's the fun of this hobby. But as you know, there are many "experts" here on these forums, that love to quote and pass on 3rd hand information. Me,... I put a lot more stock into direct experience, and those that can show me what their tanks actually look like.

Can you give an explanation or example of correct and incorrect usage?